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1.22M
99E
99
E
en
E. Help Greg the Dwarf
<div class="problem-statement"><div class="header"><div class="title">E. Help Greg the Dwarf</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="726aac1b4d17f88e09a2d6e3aaebc78e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Binary search", "Geometry, computational geometry", "Ternary search"]
["binary search", "geometry", "ternary search", "*2500"]
https://codeforces.com/blog/entry/2326
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="92b87381308583317ab1a4d6008f39c4"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
101A
101
A
en
A. Homework
<div class="problem-statement"><div class="header"><div class="title">A. Homework</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prope...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="0f47127c97e1201801593ee42641759b"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms"]
["greedy", "*1200"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
101B
101
B
en
B. Buses
<div class="problem-statement"><div class="header"><div class="title">B. Buses</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>265 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="26a2ab69d45c12a1d41efeabcc21ab50"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Binary search", "Heaps, binary search trees, segment trees, hash tables, etc", "Dynamic programming"]
["binary search", "data structures", "dp", "*1700"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
101C
101
C
en
C. Vectors
<div class="problem-statement"><div class="header"><div class="title">C. Vectors</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="propert...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="155232c4a14e4e16f787d1dcbf5aea05"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["implementation", "math", "*2000"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
101D
101
D
en
D. Castle
<div class="problem-statement"><div class="header"><div class="title">D. Castle</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="propert...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="4b3537ac68bd2ad7ca939c33daff0d96"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming", "Greedy algorithms", "Probabilities, expected values, statistics, random variables, etc", "Sortings, orderings", "Trees"]
["dp", "greedy", "probabilities", "sortings", "trees", "*2300"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
101E
101
E
en
E. Candies and Stones
<div class="problem-statement"><div class="header"><div class="title">E. Candies and Stones</div><div class="time-limit"><div class="property-title">time limit per test</div>7.5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>45 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="a79cd1fbee9f1f3bf763a650ae41d2b7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Divide and Conquer", "Dynamic programming"]
["divide and conquer", "dp", "*2500"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
102A
102
A
en
A. Clothes
<div class="problem-statement"><div class="header"><div class="title">A. Clothes</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="8f460b12a595615a71e816dc6f07d3a0"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force"]
["brute force", "*1200"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
102B
102
B
en
B. Sum of Digits
<div class="problem-statement"><div class="header"><div class="title">B. Sum of Digits</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>265 megabytes</div><div class="input-file"><div class="...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="eb8bc1e427618515332ddba6a8440503"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*1000"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
102C
102
C
en
C. Homework
<div class="problem-statement"><div class="header"><div class="title">C. Homework</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prope...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="60ca146444307e84bcdd562d59cc8c1a"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms"]
["greedy", "*1200"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
102D
102
D
en
D. Buses
<div class="problem-statement"><div class="header"><div class="title">D. Buses</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>265 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="100d8945d7ca7c9c6a3a627cda5edeef"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Binary search", "Heaps, binary search trees, segment trees, hash tables, etc", "Dynamic programming"]
["binary search", "data structures", "dp", "*1700"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
102E
102
E
en
E. Vectors
<div class="problem-statement"><div class="header"><div class="title">E. Vectors</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="propert...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24b906d1d387e3f5c6fc5f14ea5542dc"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
[]
["*2000"]
https://codeforces.com/blog/entry/2393
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c319fbe13834d89a61aba3bb275e2ef3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
103A
103
A
en
A. Testing Pants for Sadness
<div class="problem-statement"><div class="header"><div class="title">A. Testing Pants for Sadness</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file">...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="411eae0818542a61857e152e2fc85c5d"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms", "Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["greedy", "implementation", "math", "*1100"]
https://codeforces.com/blog/entry/2426?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5e5d50bcd074481f9a1452299b5d0e74"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
103B
103
B
en
B. Cthulhu
<div class="problem-statement"><div class="header"><div class="title">B. Cthulhu</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d678e0292b1dcf6edea2f4ef9d07624b"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Disjoint set union", "Graphs"]
["dfs and similar", "dsu", "graphs", "*1500"]
https://codeforces.com/blog/entry/2426?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5e5d50bcd074481f9a1452299b5d0e74"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
103C
103
C
en
C. Russian Roulette
<div class="problem-statement"><div class="header"><div class="title">C. Russian Roulette</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="8c5a989f3ca704bb4be100b19ab71cce"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Constructive algorithms", "Greedy algorithms"]
["constructive algorithms", "greedy", "*1900"]
https://codeforces.com/blog/entry/2426?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5e5d50bcd074481f9a1452299b5d0e74"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
103D
103
D
en
D. Time to Raid Cowavans
<div class="problem-statement"><div class="header"><div class="title">D. Time to Raid Cowavans</div><div class="time-limit"><div class="property-title">time limit per test</div>4 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>70 megabytes</div><div class="input-file"><div ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="08fd491c8d1482a8cc423714d159e167"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Heaps, binary search trees, segment trees, hash tables, etc", "Sortings, orderings"]
["brute force", "data structures", "sortings", "*2100"]
https://codeforces.com/blog/entry/2426?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5e5d50bcd074481f9a1452299b5d0e74"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
103E
103
E
en
E. Buying Sets
<div class="problem-statement"><div class="header"><div class="title">E. Buying Sets</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pr...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="8e41c96979c23783dc91db390eb24882"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Graph network flows", "Graph matchings, K\u00f6nig's theorem, vertex cover of bipartite graph"]
["flows", "graph matchings", "*2900"]
https://codeforces.com/blog/entry/2426?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5e5d50bcd074481f9a1452299b5d0e74"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
104A
104
A
en
A. Blackjack
<div class="problem-statement"><div class="header"><div class="title">A. Blackjack</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="54034f66921ad40d06f2f8507a8af0b8"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*800"]
https://codeforces.com/blog/entry/2539
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f2428f61eeb57c97ac8f493c09cef93e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
104B
104
B
en
B. Testing Pants for Sadness
<div class="problem-statement"><div class="header"><div class="title">B. Testing Pants for Sadness</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file">...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="4758dfe36019420f8a4c01ab021bd5cf"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc"]
["math", "*1100"]
https://codeforces.com/blog/entry/2539
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f2428f61eeb57c97ac8f493c09cef93e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
104C
104
C
en
C. Cthulhu
<div class="problem-statement"><div class="header"><div class="title">C. Cthulhu</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="78020897d20fd92e2a944800a1998a0f"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Disjoint set union", "Trees"]
["dsu", "trees", "*1500"]
https://codeforces.com/blog/entry/2539
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f2428f61eeb57c97ac8f493c09cef93e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
104D
104
D
en
D. Russian Roulette
<div class="problem-statement"><div class="header"><div class="title">D. Russian Roulette</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b6ed7411cfface62b952bc182334dd0d"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc"]
["math", "*1900"]
https://codeforces.com/blog/entry/2539
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f2428f61eeb57c97ac8f493c09cef93e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
104E
104
E
en
E. Time to Raid Cowavans
<div class="problem-statement"><div class="header"><div class="title">E. Time to Raid Cowavans</div><div class="time-limit"><div class="property-title">time limit per test</div>4 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>70 megabytes</div><div class="input-file"><div ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="78aaefdc46e916624691cf34d8e0a5a6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
[]
["*2100"]
https://codeforces.com/blog/entry/2539
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f2428f61eeb57c97ac8f493c09cef93e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
105A
105
A
en
A. Transmigration
<div class="problem-statement"><div class="header"><div class="title">A. Transmigration</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class=...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="552442294553f909675830ab73bd5f51"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*1700"]
https://codeforces.com/blog/entry/2462?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f30849c28f193df4e455031dde65b029"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
105B
105
B
en
B. Dark Assembly
<div class="problem-statement"><div class="header"><div class="title">B. Dark Assembly</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="165b058738a9d09f25342fc6ff9494d1"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Probabilities, expected values, statistics, random variables, etc"]
["brute force", "probabilities", "*1800"]
https://codeforces.com/blog/entry/2462?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f30849c28f193df4e455031dde65b029"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
105C
105
C
en
C. Item World
<div class="problem-statement"><div class="header"><div class="title">C. Item World</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pro...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="caa3c55dc8e9a9ff7a95777b84ef24b1"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Implementation problems, programming technics, simulation", "Sortings, orderings"]
["brute force", "implementation", "sortings", "*2200"]
https://codeforces.com/blog/entry/2462?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f30849c28f193df4e455031dde65b029"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
105D
105
D
en
D. Entertaining Geodetics
<div class="problem-statement"><div class="header"><div class="title">D. Entertaining Geodetics</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="56aeed3610eddbd82a79ef7fe4bfb6f6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Disjoint set union", "Implementation problems, programming technics, simulation"]
["brute force", "dsu", "implementation", "*2700"]
https://codeforces.com/blog/entry/2462?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f30849c28f193df4e455031dde65b029"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
105E
105
E
en
E. Lift and Throw
<div class="problem-statement"><div class="header"><div class="title">E. Lift and Throw</div><div class="time-limit"><div class="property-title">time limit per test</div>1.5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6a851fe2722671070ec62ecc6c62e65f"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force"]
["brute force", "*2500"]
https://codeforces.com/blog/entry/2462?locale=en
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f30849c28f193df4e455031dde65b029"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
106A
106
A
en
A. Card Game
<div class="problem-statement"><div class="header"><div class="title">A. Card Game</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="7b17334ff592b3a4c5d4f3bfe432ad71"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*1000"]
https://codeforces.com/blog/entry/2493
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="12c6b95153a7247f7e700ecbfaa4f8c3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
106B
106
B
en
B. Choosing Laptop
<div class="problem-statement"><div class="header"><div class="title">B. Choosing Laptop</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="815679b3ab52da03487d77375875740e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Implementation problems, programming technics, simulation"]
["brute force", "implementation", "*1000"]
https://codeforces.com/blog/entry/2493
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="12c6b95153a7247f7e700ecbfaa4f8c3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
106C
106
C
en
C. Buns
<div class="problem-statement"><div class="header"><div class="title">C. Buns</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property-...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="bfeba1c05b4e887889ef70aba8b6dfae"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming"]
["dp", "*1700"]
https://codeforces.com/blog/entry/2493
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="12c6b95153a7247f7e700ecbfaa4f8c3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
106D
106
D
en
D. Treasure Island
<div class="problem-statement"><div class="header"><div class="title">D. Treasure Island</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="0e0fb94f4b189b9a8008df8e24c5ed99"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Implementation problems, programming technics, simulation"]
["brute force", "implementation", "*1700"]
https://codeforces.com/blog/entry/2493
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="12c6b95153a7247f7e700ecbfaa4f8c3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
106E
106
E
en
E. Space Rescuers
<div class="problem-statement"><div class="header"><div class="title">E. Space Rescuers</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class=...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e18cfbeab5d468e9ea437acb02e7b408"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Geometry, computational geometry", "Ternary search"]
["geometry", "ternary search", "*2100"]
https://codeforces.com/blog/entry/2493
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="12c6b95153a7247f7e700ecbfaa4f8c3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
107A
107
A
en
A. Dorm Water Supply
<div class="problem-statement"><div class="header"><div class="title">A. Dorm Water Supply</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b57f15449a332627e1b481da6a3fe29d"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Graphs"]
["dfs and similar", "graphs", "*1400"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
107B
107
B
en
B. Basketball Team
<div class="problem-statement"><div class="header"><div class="title">B. Basketball Team</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class=...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="ea04f7aed388528e54af5876849e88cc"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Combinatorics", "Dynamic programming", "Mathematics including integration, differential equations, etc", "Probabilities, expected values, statistics, random variables, etc"]
["combinatorics", "dp", "math", "probabilities", "*1600"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
107C
107
C
en
C. Arrangement
<div class="problem-statement"><div class="header"><div class="title">C. Arrangement</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pr...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="4bcca68a3c05ee649e99d733e971f246"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Bitmasks", "Dynamic programming"]
["bitmasks", "dp", "*2400"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
107D
107
D
en
D. Crime Management
<div class="problem-statement"><div class="header"><div class="title">D. Crime Management</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c187aa4264ea64bf5c147fde216de931"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming", "Graphs", "Matrix multiplication, determinant, Cramer's rule, systems of linear equations"]
["dp", "graphs", "matrices", "*2400"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
107E
107
E
en
E. Darts
<div class="problem-statement"><div class="header"><div class="title">E. Darts</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="553390a83c6e8cddf17a32887928cc08"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Geometry, computational geometry", "Probabilities, expected values, statistics, random variables, etc"]
["geometry", "probabilities", "*2700"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
108A
108
A
en
A. Palindromic Times
<div class="problem-statement"><div class="header"><div class="title">A. Palindromic Times</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6e1d9e2c290cfa4f41eb191b6a9e5611"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["implementation", "strings", "*1000"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
108B
108
B
en
B. Datatypes
<div class="problem-statement"><div class="header"><div class="title">B. Datatypes</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="65d5ca9e23723943af14d414a3006d9a"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc", "Sortings, orderings"]
["math", "sortings", "*1400"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
108C
108
C
en
C. Dorm Water Supply
<div class="problem-statement"><div class="header"><div class="title">C. Dorm Water Supply</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="3c983a6f36112fe949c6b287cc6d15fc"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Graphs", "Implementation problems, programming technics, simulation"]
["dfs and similar", "graphs", "implementation", "*1400"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
108D
108
D
en
D. Basketball Team
<div class="problem-statement"><div class="header"><div class="title">D. Basketball Team</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class=...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="8c86e10f70d205fefee5bb5e9acde033"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Combinatorics", "Mathematics including integration, differential equations, etc", "Probabilities, expected values, statistics, random variables, etc"]
["combinatorics", "math", "probabilities", "*1600"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
108E
108
E
en
E. Arrangement
<div class="problem-statement"><div class="header"><div class="title">E. Arrangement</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pr...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="1c6e32b327b244d9df6b97ad3aa4cdd1"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
[]
["*2400"]
https://codeforces.com/blog/entry/2514
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="00bb061f6100a6eec65de609d78e0af6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
109A
109
A
en
A. Lucky Sum of Digits
<div class="problem-statement"><div class="header"><div class="title">A. Lucky Sum of Digits</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="bb593f3a4ba52a77f94427e87e58dd39"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Implementation problems, programming technics, simulation"]
["brute force", "implementation", "*1000"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
109B
109
B
en
B. Lucky Probability
<div class="problem-statement"><div class="header"><div class="title">B. Lucky Probability</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d15203cd730a708dae176e4b49495098"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Probabilities, expected values, statistics, random variables, etc"]
["brute force", "probabilities", "*1900"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
109C
109
C
en
C. Lucky Tree
<div class="problem-statement"><div class="header"><div class="title">C. Lucky Tree</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pro...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="4d256bd703a63b2b89ba82b11c73123e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming", "Disjoint set union", "Trees"]
["dp", "dsu", "trees", "*1900"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
109D
109
D
en
D. Lucky Sorting
<div class="problem-statement"><div class="header"><div class="title">D. Lucky Sorting</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d91fee8e629c72be145f92bb7c7749da"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Constructive algorithms", "Sortings, orderings"]
["constructive algorithms", "sortings", "*2000"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
109E
109
E
en
E. Lucky Interval
<div class="problem-statement"><div class="header"><div class="title">E. Lucky Interval</div><div class="time-limit"><div class="property-title">time limit per test</div>4 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>512 megabytes</div><div class="input-file"><div class=...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="57c02a4b69c8976e176d217a4dfd06a6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Mathematics including integration, differential equations, etc"]
["brute force", "math", "*2700"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
110A
110
A
en
A. Nearly Lucky Number
<div class="problem-statement"><div class="header"><div class="title">A. Nearly Lucky Number</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="ee7d6d6c9330f9426ec592ef4096271e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*800"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
110B
110
B
en
B. Lucky String
<div class="problem-statement"><div class="header"><div class="title">B. Lucky String</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="p...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="edada53a8a0d91931781c3454235ecb3"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Constructive algorithms", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["constructive algorithms", "strings", "*1100"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
110C
110
C
en
C. Lucky Sum of Digits
<div class="problem-statement"><div class="header"><div class="title">C. Lucky Sum of Digits</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="556bbb1754303aa55005178d0045d56b"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["implementation", "math", "*1000"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
110D
110
D
en
D. Lucky Probability
<div class="problem-statement"><div class="header"><div class="title">D. Lucky Probability</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="66008d7993861278731cd1bd59528bb0"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Combinatorics", "Dfs and similar", "Probabilities, expected values, statistics, random variables, etc"]
["brute force", "combinatorics", "dfs and similar", "probabilities", "*1900"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
110E
110
E
en
E. Lucky Tree
<div class="problem-statement"><div class="header"><div class="title">E. Lucky Tree</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pro...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c3595f1c4543d8e2457a2a6c13c686ba"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Combinatorics", "Dfs and similar", "Trees"]
["combinatorics", "dfs and similar", "trees", "*1900"]
https://codeforces.com/blog/entry/2547
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="16a449a7d843d17d307a22ed9391a4fd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
111A
111
A
en
A. Petya and Inequiations
<div class="problem-statement"><div class="header"><div class="title">A. Petya and Inequiations</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><di...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="29182a81d6586bdc598700474634db77"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms"]
["greedy", "*1400"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
111B
111
B
en
B. Petya and Divisors
<div class="problem-statement"><div class="header"><div class="title">B. Petya and Divisors</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cl...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="dac928a4f143a0e00382c43fdb330af8"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Binary search", "Heaps, binary search trees, segment trees, hash tables, etc", "Number theory: Euler function, GCD, divisibility, etc"]
["binary search", "data structures", "number theory", "*1900"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
111C
111
C
en
C. Petya and Spiders
<div class="problem-statement"><div class="header"><div class="title">C. Petya and Spiders</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c8d7a5826d2617052bea68e373457968"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Bitmasks", "Dynamic programming", "Disjoint set union"]
["bitmasks", "dp", "dsu", "*2100"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
111D
111
D
en
D. Petya and Coloring
<div class="problem-statement"><div class="header"><div class="title">D. Petya and Coloring</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cl...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="7839f1413f10ebb5b690f0f1d80808ba"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Combinatorics", "Dynamic programming"]
["combinatorics", "dp", "*2300"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
111E
111
E
en
E. Petya and Rectangle
<div class="problem-statement"><div class="header"><div class="title">E. Petya and Rectangle</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="554368a96da64067fa96318541ac0c3c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
[]
["*2900"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
112A
112
A
en
A. Petya and Strings
<div class="problem-statement"><div class="header"><div class="title">A. Petya and Strings</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f27062e353d45a2e9c3917dc236375d6"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["implementation", "strings", "*800"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
112B
112
B
en
B. Petya and Square
<div class="problem-statement"><div class="header"><div class="title">B. Petya and Square</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="dfff30774dd82d1df06c777b7b7fa186"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["implementation", "math", "*1200"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
112C
112
C
en
C. Petya and Inequiations
<div class="problem-statement"><div class="header"><div class="title">C. Petya and Inequiations</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><di...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="8d8b3b9a79687360e6e010ffd32552e0"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms", "Mathematics including integration, differential equations, etc"]
["greedy", "math", "*1400"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
112D
112
D
en
D. Petya and Divisors
<div class="problem-statement"><div class="header"><div class="title">D. Petya and Divisors</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cl...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="1052da9b0d74bc3fe922999d059bcbe5"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Number theory: Euler function, GCD, divisibility, etc"]
["implementation", "number theory", "*1900"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
112E
112
E
en
E. Petya and Spiders
<div class="problem-statement"><div class="header"><div class="title">E. Petya and Spiders</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="ab078230392b055c176cdf2927f292f0"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Bitmasks", "Dynamic programming"]
["bitmasks", "dp", "*2100"]
https://codeforces.com/blog/entry/2616
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="e16c4316f64f9a4e9d28babeb5e38c6e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
113A
113
A
en
A. Grammar Lessons
<div class="problem-statement"><div class="header"><div class="title">A. Grammar Lessons</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="3ace87051718cf0f2d353cb596a2f567"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["implementation", "strings", "*1600"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
113B
113
B
en
B. Petr#
<div class="problem-statement"><div class="header"><div class="title">B. Petr#</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d604d97ad6beae860c5d146a87a4bc77"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Heaps, binary search trees, segment trees, hash tables, etc", "Hashing, hashtables", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["brute force", "data structures", "hashing", "strings", "*2000"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
113C
113
C
en
C. Double Happiness
<div class="problem-statement"><div class="header"><div class="title">C. Double Happiness</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>128 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6e20e86b87d4f864e741bf3147cedb3a"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Mathematics including integration, differential equations, etc", "Number theory: Euler function, GCD, divisibility, etc"]
["brute force", "math", "number theory", "*2200"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
113D
113
D
en
D. Museum
<div class="problem-statement"><div class="header"><div class="title">D. Museum</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="propert...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="ea16b4da10d0feca9abdded8c5fdff7a"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc", "Matrix multiplication, determinant, Cramer's rule, systems of linear equations", "Probabilities, expected values, statistics, random variables, etc"]
["math", "matrices", "probabilities", "*2700"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
113E
113
E
en
E. Sleeping
<div class="problem-statement"><div class="header"><div class="title">E. Sleeping</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prope...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6a612a561e7c6b1855ea7f40f1159785"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Combinatorics", "Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["combinatorics", "implementation", "math", "*2700"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
114A
114
A
en
A. Cifera
<div class="problem-statement"><div class="header"><div class="title">A. Cifera</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="propert...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d3facfafc7545c0cdb4a6b8c0cc4954c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc"]
["math", "*1000"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
114B
114
B
en
B. PFAST Inc.
<div class="problem-statement"><div class="header"><div class="title">B. PFAST Inc.</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pro...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d43dcf8c799b7210c2d5adf5367683a9"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Bitmasks", "Brute force", "Graphs"]
["bitmasks", "brute force", "graphs", "*1500"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
114C
114
C
en
C. Grammar Lessons
<div class="problem-statement"><div class="header"><div class="title">C. Grammar Lessons</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="95175c24e992afbef23ec755bd20355f"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*1600"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
114D
114
D
en
D. Petr#
<div class="problem-statement"><div class="header"><div class="title">D. Petr#</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="ca7994ccaeedf42f597e1beb21163db7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Heaps, binary search trees, segment trees, hash tables, etc", "Hashing, hashtables", "Suffix arrays, suffix trees, suffix automatas, etc", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["data structures", "hashing", "string suffix structures", "strings", "*2000"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
114E
114
E
en
E. Double Happiness
<div class="problem-statement"><div class="header"><div class="title">E. Double Happiness</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>128 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="7cb11fa7128cd0bc5e992de45200e488"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc", "Number theory: Euler function, GCD, divisibility, etc"]
["math", "number theory", "*2200"]
https://codeforces.com/blog/entry/2627
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="24e785535cb617323c37b264899965d7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
115A
115
A
en
A. Party
<div class="problem-statement"><div class="header"><div class="title">A. Party</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="18fd8bf95b9239e54c40214bbcc34077"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Graphs", "Trees"]
["dfs and similar", "graphs", "trees", "*900"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
115B
115
B
en
B. Lawnmower
<div class="problem-statement"><div class="header"><div class="title">B. Lawnmower</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6c53b7e2e32b090edf4cf35c887763e8"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms", "Sortings, orderings"]
["greedy", "sortings", "*1500"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
115C
115
C
en
C. Plumber
<div class="problem-statement"><div class="header"><div class="title">C. Plumber</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6e3fef4967beb7ec08a347fd14a41c7e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Mathematics including integration, differential equations, etc"]
["math", "*2200"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
115D
115
D
en
D. Unambiguous Arithmetic Expression
<div class="problem-statement"><div class="header"><div class="title">D. Unambiguous Arithmetic Expression</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="inpu...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="a97f4638b7dcc1a8a9463ded25f9329f"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming", "Parsing expression grammar"]
["dp", "expression parsing", "*2600"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
115E
115
E
en
E. Linear Kingdom Races
<div class="problem-statement"><div class="header"><div class="title">E. Linear Kingdom Races</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c97668e057713af5b06eccc84832c159"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Heaps, binary search trees, segment trees, hash tables, etc", "Dynamic programming"]
["data structures", "dp", "*2400"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
116A
116
A
en
A. Tram
<div class="problem-statement"><div class="header"><div class="title">A. Tram</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property-...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5ba51d2cb76903bee4c6eb14fecf7d47"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*800"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
116B
116
B
en
B. Little Pigs and Wolves
<div class="problem-statement"><div class="header"><div class="title">B. Little Pigs and Wolves</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><di...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5eaba1fe75469662683b1150a2a17b9a"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Greedy algorithms", "Implementation problems, programming technics, simulation"]
["greedy", "implementation", "*1100"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
116C
116
C
en
C. Party
<div class="problem-statement"><div class="header"><div class="title">C. Party</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="property...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="34713876ba31c7423f4af70d548a0165"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Graphs", "Trees"]
["dfs and similar", "graphs", "trees", "*900"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
116D
116
D
en
D. Lawnmower
<div class="problem-statement"><div class="header"><div class="title">D. Lawnmower</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="a0128757c27843d70b1c0288635209ca"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming", "Greedy algorithms"]
["dp", "greedy", "*1500"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
116E
116
E
en
E. Plumber
<div class="problem-statement"><div class="header"><div class="title">E. Plumber</div><div class="time-limit"><div class="property-title">time limit per test</div>3 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="14c39c2d1bde620fb3f98ab1ced08e53"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
[]
["*2200"]
https://codeforces.com/blog/entry/2584
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b1f5e2369cf133ecdd17c493234a92ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
117A
117
A
en
A. Elevator
<div class="problem-statement"><div class="header"><div class="title">A. Elevator</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="b24e0e91bd79196df4fa0808c3955491"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["implementation", "math", "*1300"]
https://codeforces.com/blog/entry/2752
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="769fc2e8f27316782602b68a0062342c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
117B
117
B
en
B. Very Interesting Game
<div class="problem-statement"><div class="header"><div class="title">B. Very Interesting Game</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="954e3495f2eb383e417146abfce84dad"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Number theory: Euler function, GCD, divisibility, etc"]
["brute force", "number theory", "*1800"]
https://codeforces.com/blog/entry/2752
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="769fc2e8f27316782602b68a0062342c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
117C
117
C
en
C. Cycle
<div class="problem-statement"><div class="header"><div class="title">C. Cycle</div><div class="time-limit"><div class="property-title">time limit per test</div>2.5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="2f922baca88caf73603c3f48b2dcfa01"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Graphs"]
["dfs and similar", "graphs", "*2000"]
https://codeforces.com/blog/entry/2752
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="769fc2e8f27316782602b68a0062342c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
117D
117
D
en
D. Not Quick Transformation
<div class="problem-statement"><div class="header"><div class="title">D. Not Quick Transformation</div><div class="time-limit"><div class="property-title">time limit per test</div>6 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6cb14ffc6bf864102fa0be7431cdfc5e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Divide and Conquer", "Mathematics including integration, differential equations, etc"]
["divide and conquer", "math", "*2500"]
https://codeforces.com/blog/entry/2752
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="769fc2e8f27316782602b68a0062342c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
117E
117
E
en
E. Tree or not Tree
<div class="problem-statement"><div class="header"><div class="title">E. Tree or not Tree</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="1e73d4a0e5e46ae8f7a09c2e184b89ff"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Heaps, binary search trees, segment trees, hash tables, etc", "Divide and Conquer", "Implementation problems, programming technics, simulation", "Trees"]
["data structures", "divide and conquer", "implementation", "trees", "*2900"]
https://codeforces.com/blog/entry/2752
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="769fc2e8f27316782602b68a0062342c"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
118A
118
A
en
A. String Task
<div class="problem-statement"><div class="header"><div class="title">A. String Task</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pr...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="9263b7a06a5e1ca92ba98c9383623c7a"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["implementation", "strings", "*1000"]
https://codeforces.com/blog/entry/2826
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="039c7186b0772a4f07cef42499c6e65e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
118B
118
B
en
B. Present from Lena
<div class="problem-statement"><div class="header"><div class="title">B. Present from Lena</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div cla...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="9387da840a9c559bf4578e70ac86df78"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Constructive algorithms", "Implementation problems, programming technics, simulation"]
["constructive algorithms", "implementation", "*1000"]
https://codeforces.com/blog/entry/2826
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="039c7186b0772a4f07cef42499c6e65e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
118C
118
C
en
C. Fancy Number
<div class="problem-statement"><div class="header"><div class="title">C. Fancy Number</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="p...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="265904f75c60e5e1146277cbd0c1a94b"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Greedy algorithms", "Sortings, orderings", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["brute force", "greedy", "sortings", "strings", "*1900"]
https://codeforces.com/blog/entry/2826
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="039c7186b0772a4f07cef42499c6e65e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
118D
118
D
en
D. Caesar's Legions
<div class="problem-statement"><div class="header"><div class="title">D. Caesar's Legions</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div clas...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="6716ee2b69fce86ff6c4441801ed7ede"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming"]
["dp", "*1700"]
https://codeforces.com/blog/entry/2826
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="039c7186b0772a4f07cef42499c6e65e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
118E
118
E
en
E. Bertown roads
<div class="problem-statement"><div class="header"><div class="title">E. Bertown roads</div><div class="time-limit"><div class="property-title">time limit per test</div>5 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c4c6481650aa47a4e7ff3ece0563b641"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dfs and similar", "Graphs"]
["dfs and similar", "graphs", "*2000"]
https://codeforces.com/blog/entry/2826
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="039c7186b0772a4f07cef42499c6e65e"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
119A
119
A
en
A. Epic Game
<div class="problem-statement"><div class="header"><div class="title">A. Epic Game</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="5d97aa5186bf14cb9cd3392900614e41"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*800"]
https://codeforces.com/blog/entry/3229
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c76857b13ebdb757b27e0de20e75d1ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
119B
119
B
en
B. Before Exam
<div class="problem-statement"><div class="header"><div class="title">B. Before Exam</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pr...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="518da62af92f3fe0d24af336ed5bda09"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Constructive algorithms", "Implementation problems, programming technics, simulation", "Sortings, orderings"]
["constructive algorithms", "implementation", "sortings", "*1900"]
https://codeforces.com/blog/entry/3229
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c76857b13ebdb757b27e0de20e75d1ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
119C
119
C
en
C. Education Reform
<div class="problem-statement"><div class="header"><div class="title">C. Education Reform</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="7001435bfe303768205a3d6d6315f5a2"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Dynamic programming"]
["dp", "*2000"]
https://codeforces.com/blog/entry/3229
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c76857b13ebdb757b27e0de20e75d1ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
119D
119
D
en
D. String Transformation
<div class="problem-statement"><div class="header"><div class="title">D. String Transformation</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="2a8b0d54e027c7fb5a25df0d9abfd8f9"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Hashing, hashtables", "Prefix- and Z-functions, suffix structures, Knuth\u2013Morris\u2013Pratt algorithm, etc"]
["hashing", "strings", "*2500"]
https://codeforces.com/blog/entry/3229
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c76857b13ebdb757b27e0de20e75d1ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
119E
119
E
en
E. Alternative Reality
<div class="problem-statement"><div class="header"><div class="title">E. Alternative Reality</div><div class="time-limit"><div class="property-title">time limit per test</div>2 seconds</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div c...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="d9e501a89ace40caec3bd9ca0b287ddd"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Geometry, computational geometry"]
["geometry", "*2400"]
https://codeforces.com/blog/entry/3229
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="c76857b13ebdb757b27e0de20e75d1ed"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
120A
120
A
en
A. Elevator
<div class="problem-statement"><div class="header"><div class="title">A. Elevator</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="proper...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="19710f40a7868bccba2a5f2773dba39b"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force", "Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["brute force", "implementation", "math", "*1000"]
https://codeforces.com/blog/entry/2892
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="3d08c72fb36712f018267cb6484113cf"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
120B
120
B
en
B. Quiz League
<div class="problem-statement"><div class="header"><div class="title">B. Quiz League</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="pro...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="cbb92d0768de6b20097fefc004156eb9"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation"]
["implementation", "*1100"]
https://codeforces.com/blog/entry/2892
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="3d08c72fb36712f018267cb6484113cf"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
120C
120
C
en
C. Winnie-the-Pooh and honey
<div class="problem-statement"><div class="header"><div class="title">C. Winnie-the-Pooh and honey</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="481dbf54d46413298c7157a5e2c22771"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Implementation problems, programming technics, simulation", "Mathematics including integration, differential equations, etc"]
["implementation", "math", "*1100"]
https://codeforces.com/blog/entry/2892
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="3d08c72fb36712f018267cb6484113cf"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
120D
120
D
en
D. Three Sons
<div class="problem-statement"><div class="header"><div class="title">D. Three Sons</div><div class="time-limit"><div class="property-title">time limit per test</div>1 second</div><div class="memory-limit"><div class="property-title">memory limit per test</div>256 megabytes</div><div class="input-file"><div class="prop...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="f00d6a53c803399b00331b093c068ba7"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...
["Brute force"]
["brute force", "*1400"]
https://codeforces.com/blog/entry/2892
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="X-Csrf-Token" content="3d08c72fb36712f018267cb6484113cf"/> <meta id="viewport" name="viewport" content="width=device-width, initial-scale=0.01"/> ...