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Provide a correct Python 3 solution for this coding contest problem. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalanced, while neither `noon` nor `a` is. You are given a s...
instruction
0
79,016
0
158,032
"Correct Solution: ``` # 2019/09/11 s=list(input()) n=len(s) if n<3: print(*[1,2] if len(set(s))<2 else [-1,-1]) exit() ans=(-1,-1) for i in range(1,n-1): if len(set(s[i]+s[i-1]+s[i+1]))<3: ans=(i,i+2) break print(*ans) ```
output
1
79,016
0
158,033
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,017
0
158,034
Yes
output
1
79,017
0
158,035
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,018
0
158,036
Yes
output
1
79,018
0
158,037
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,019
0
158,038
Yes
output
1
79,019
0
158,039
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,020
0
158,040
Yes
output
1
79,020
0
158,041
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,021
0
158,042
No
output
1
79,021
0
158,043
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,022
0
158,044
No
output
1
79,022
0
158,045
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,023
0
158,046
No
output
1
79,023
0
158,047
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Given a string t, we will call it unbalanced if and only if the length of t is at least 2, and more than half of the letters in t are the same. For example, both `voodoo` and `melee` are unbalan...
instruction
0
79,024
0
158,048
No
output
1
79,024
0
158,049
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a matrix of size n × n filled with lowercase English letters. You can change no more than k letters in this matrix. Consider all paths from the upper left corner to the lower righ...
instruction
0
79,131
0
158,262
No
output
1
79,131
0
158,263
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a matrix of size n × n filled with lowercase English letters. You can change no more than k letters in this matrix. Consider all paths from the upper left corner to the lower righ...
instruction
0
79,132
0
158,264
No
output
1
79,132
0
158,265
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a matrix of size n × n filled with lowercase English letters. You can change no more than k letters in this matrix. Consider all paths from the upper left corner to the lower righ...
instruction
0
79,133
0
158,266
No
output
1
79,133
0
158,267
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a matrix of size n × n filled with lowercase English letters. You can change no more than k letters in this matrix. Consider all paths from the upper left corner to the lower righ...
instruction
0
79,134
0
158,268
No
output
1
79,134
0
158,269
Provide tags and a correct Python 3 solution for this coding contest problem. This problem is different with hard version only by constraints on total answers length It is an interactive problem Venya joined a tour to the madhouse, in which orderlies play with patients the following game. Orderlies pick a string s o...
instruction
0
79,283
0
158,566
Tags: brute force, constructive algorithms, interactive, math Correct Solution: ``` mod = 1000000007 eps = 10**-9 def main(): import sys from collections import Counter input = sys.stdin.readline def ask(l, r): print(*["?", l, r]) sys.stdout.flush() N = int(input()) ask(1, N)...
output
1
79,283
0
158,567
Provide tags and a correct Python 3 solution for this coding contest problem. This problem is different with hard version only by constraints on total answers length It is an interactive problem Venya joined a tour to the madhouse, in which orderlies play with patients the following game. Orderlies pick a string s o...
instruction
0
79,284
0
158,568
Tags: brute force, constructive algorithms, interactive, math Correct Solution: ``` from bisect import bisect_left as bl from bisect import bisect_right as br import heapq import math from collections import * from functools import reduce,cmp_to_key import sys input = sys.stdin.readline # M = mod = 998244353 def fact...
output
1
79,284
0
158,569
Provide tags and a correct Python 3 solution for this coding contest problem. This problem is different with hard version only by constraints on total answers length It is an interactive problem Venya joined a tour to the madhouse, in which orderlies play with patients the following game. Orderlies pick a string s o...
instruction
0
79,285
0
158,570
Tags: brute force, constructive algorithms, interactive, math Correct Solution: ``` import sys input = sys.stdin.readline from bisect import bisect_left n = int(input()) print('?', 1, n) sys.stdout.flush() m = (n + 1) // 2 l1 = [[0] * 26 for _ in range(m + 1)] for i in range(n * (n + 1) // 2): s = input()[:-1] ...
output
1
79,285
0
158,571
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s of 0's and 1's. You are allowed to perform the following operation: * choose a non-empty contiguous substring of s that contains an equal number of 0's and 1's; * flip all characters in the substring, that is, r...
instruction
0
79,350
0
158,700
Tags: data structures, graphs, greedy Correct Solution: ``` import io,os, sys input = sys.stdin.readline print = sys.stdout.write t = int(input()) START = 500001 seen = [0] * (2 * START) while t > 0: t -= 1 s = input().strip("\n") cur = START for c in s: if c == '0': seen[cur] +=...
output
1
79,350
0
158,701
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s of 0's and 1's. You are allowed to perform the following operation: * choose a non-empty contiguous substring of s that contains an equal number of 0's and 1's; * flip all characters in the substring, that is, r...
instruction
0
79,351
0
158,702
Tags: data structures, graphs, greedy Correct Solution: ``` # test Arpa code import io,os, sys input = sys.stdin.readline print = sys.stdout.write t = int(input()) START = 500001 seen = [0] * (2 * START) while t > 0: t -= 1 s = input().strip("\n") cur = START for c in s: if c == '0': ...
output
1
79,351
0
158,703
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s of 0's and 1's. You are allowed to perform the following operation: * choose a non-empty contiguous substring of s that contains an equal number of 0's and 1's; * flip all characters in the substring, that is, r...
instruction
0
79,352
0
158,704
Tags: data structures, graphs, greedy Correct Solution: ``` import os import sys from io import BytesIO, IOBase def main(): pass # region fastio BUFSIZE = 8192 class FastIO(IOBase): newlines = 0 def __init__(self, file): self._fd = file.fileno() self.buffer = BytesIO() self.w...
output
1
79,352
0
158,705
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s of 0's and 1's. You are allowed to perform the following operation: * choose a non-empty contiguous substring of s that contains an equal number of 0's and 1's; * f...
instruction
0
79,353
0
158,706
No
output
1
79,353
0
158,707
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s of 0's and 1's. You are allowed to perform the following operation: * choose a non-empty contiguous substring of s that contains an equal number of 0's and 1's; * f...
instruction
0
79,354
0
158,708
No
output
1
79,354
0
158,709
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string s of 0's and 1's. You are allowed to perform the following operation: * choose a non-empty contiguous substring of s that contains an equal number of 0's and 1's; * f...
instruction
0
79,355
0
158,710
No
output
1
79,355
0
158,711
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,649
0
159,298
Tags: constructive algorithms Correct Solution: ``` s = list(input()) k = s.copy() k.reverse() if s == k: print(''.join(s)) else: k = s[:len(s)-1] k.reverse() s.extend(k) print(''.join(s)) ```
output
1
79,649
0
159,299
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,650
0
159,300
Tags: constructive algorithms Correct Solution: ``` '''n,m = map(int,input().split()) l = list(map(int,input().split())) k = list(map(int,input().split())) ans = 0 while len(l) != 0: if len(l) >= len(k: if l[0] <= k[0]: ans += 1 del(l[0]) del(k[0]) else: ...
output
1
79,650
0
159,301
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,651
0
159,302
Tags: constructive algorithms Correct Solution: ``` import copy a = list(input()) b = copy.copy(a) b.reverse() print("".join(str(i) for i in a + b)) ```
output
1
79,651
0
159,303
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,652
0
159,304
Tags: constructive algorithms Correct Solution: ``` s=input() l=list(s) l.reverse() s1=''.join(l) print(s+s1) ```
output
1
79,652
0
159,305
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,653
0
159,306
Tags: constructive algorithms Correct Solution: ``` s = input() print(s + ''.join(s[-i - 1] for i in range(len(s)))) ```
output
1
79,653
0
159,307
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,654
0
159,308
Tags: constructive algorithms Correct Solution: ``` line = input() len1 = len(line) string = line[::-1] print(line+string) ```
output
1
79,654
0
159,309
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,655
0
159,310
Tags: constructive algorithms Correct Solution: ``` import sys if sys.version_info < (3, 0): lrange = range input = raw_input range = xrange s = input() print(s+s[::-1]) ```
output
1
79,655
0
159,311
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessarily consecutive) characters without changing the...
instruction
0
79,656
0
159,312
Tags: constructive algorithms Correct Solution: ``` inp = input() print(inp+inp[::-1]) ```
output
1
79,656
0
159,313
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,657
0
159,314
Yes
output
1
79,657
0
159,315
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,658
0
159,316
Yes
output
1
79,658
0
159,317
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,659
0
159,318
Yes
output
1
79,659
0
159,319
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,660
0
159,320
Yes
output
1
79,660
0
159,321
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,661
0
159,322
No
output
1
79,661
0
159,323
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,662
0
159,324
No
output
1
79,662
0
159,325
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,663
0
159,326
No
output
1
79,663
0
159,327
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string A. Find a string B, where B is a palindrome and A is a subsequence of B. A subsequence of a string is a string that can be derived from it by deleting some (not necessari...
instruction
0
79,664
0
159,328
No
output
1
79,664
0
159,329
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,987
0
159,974
Tags: implementation, math Correct Solution: ``` a,b=input(),input() bnb=b.count('1')%2 prefix=[int(a[0])] for i in range(1,len(a)): if a[i]=='1': prefix.append(prefix[-1]+1) else: prefix.append(prefix[-1]) lb,la=len(b),len(a) tot=1 if bnb==prefix[lb-1]%2 else 0 for j in range(lb,la): pref=...
output
1
79,987
0
159,975
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,988
0
159,976
Tags: implementation, math Correct Solution: ``` a = input() b = input() sum_a = sum(map(int, a[:len(b)])) sum_b = sum(map(int, b)) count = 0 i = 0 while True: xor = (sum_a + sum_b + 1) % 2 count += xor if i >= len(a) - len(b): break sum_a = sum_a + int(a[i + len(b)]) - int(a[i]) i += 1 ...
output
1
79,988
0
159,977
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,989
0
159,978
Tags: implementation, math Correct Solution: ``` a,b,res=input(),input(),0 sm1=sum(map(int,b[0:len(b)])) sm2=sum(map(int,a[0:len(b)])) res+=(sm1-sm2)%2==0 for i in range(len(b),len(a)): sm2+=a[i]=='1' sm2-=a[i-len(b)]=='1' res+=(sm1-sm2)%2==0 print(res) ```
output
1
79,989
0
159,979
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,990
0
159,980
Tags: implementation, math Correct Solution: ``` a=input() b=input() bo=b.count("1") lb=len(b) ao=a[:lb].count("1") final_ans=0 if (ao+bo)%2==0: final_ans+=1 for i in range(len(a)-lb): if a[i]=="1": ao-=1 if a[i+lb]=="1": ao+=1 if (ao+bo)%2==0: final_ans+=1 print(final_ans) ```
output
1
79,990
0
159,981
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,991
0
159,982
Tags: implementation, math Correct Solution: ``` a = input() b = input() c = 0 for i in range(1, len(b)): if b[i] != b[i-1]: c += 1 s = 0 for i in range(len(b)): if a[i]!=b[i]: s += 1 ans = int(s&1==0) for i in range(len(a)-len(b)): s += c if a[i] != b[0]: s += 1 if a[i+len(b...
output
1
79,991
0
159,983
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,992
0
159,984
Tags: implementation, math Correct Solution: ``` r=input() n=input() length=len(n) g=n.count("1") same=False nums=0 if len(r)<length: print(0) else: if (r[:len(n)].count("1")-g) % 2 == 0: same=True nums+=1 for i in range(len(r)-len(n)): if r[i]!=r[i+len(n)]: same= not sam...
output
1
79,992
0
159,985
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,993
0
159,986
Tags: implementation, math Correct Solution: ``` ''' fo=open("in.txt","r") s1,s2=[l.strip('\n')for l in fo.readlines()] print(s1,s2) fo.close() ''' #s1,s2=list(input(),input()) s1,s2=[input(),input()] l1,l2=[len(s1),len(s2)] cnt1,cnt2,l,p,ans=[0,0,0,0,0] #print(l) for i in s2: if i=='1': cnt2+=1 l+=1 for i in range...
output
1
79,993
0
159,987
Provide tags and a correct Python 3 solution for this coding contest problem. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the length of a. The Cossack considers every substring...
instruction
0
79,994
0
159,988
Tags: implementation, math Correct Solution: ``` # AC import sys sys.setrecursionlimit(1000000) class Main: def __init__(self): self.buff = None self.index = 0 def next(self): if self.buff is None or self.index == len(self.buff): self.buff = self.next_line() se...
output
1
79,994
0
159,989
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the leng...
instruction
0
79,995
0
159,990
Yes
output
1
79,995
0
159,991
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the leng...
instruction
0
79,996
0
159,992
Yes
output
1
79,996
0
159,993
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the leng...
instruction
0
79,997
0
159,994
Yes
output
1
79,997
0
159,995
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vus the Cossack has two binary strings, that is, strings that consist only of "0" and "1". We call these strings a and b. It is known that |b| ≤ |a|, that is, the length of b is at most the leng...
instruction
0
79,998
0
159,996
Yes
output
1
79,998
0
159,997