message stringlengths 2 65.1k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 0 108k | cluster float64 14 14 | __index_level_0__ int64 0 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The characters are labeled from 1 to n. Every pair of two ... | instruction | 0 | 45,755 | 14 | 91,510 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
class DisjointSet(object):
def __init__(self, n):
self.parent = list(range(n))
self.rank = [0] * n
self.num = n # number of disjoint sets
def union(self, x, y):
self._link(self.find_set(x), self.find_set(y))
def _lin... | output | 1 | 45,755 | 14 | 91,511 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The characters are labeled from 1 to n. Every pair of two ... | instruction | 0 | 45,756 | 14 | 91,512 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
def dfs(node, color):
if colors[node] > 0 and colors[node] != color:
# print(0)
# exit()
bipartite[0] = False
return
elif(colors[node] == 0):
colors[node] = color
for i in love[node]:
dfs(i, colo... | output | 1 | 45,756 | 14 | 91,513 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The characters are labeled from 1 to n. Every pair of two ... | instruction | 0 | 45,757 | 14 | 91,514 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
class DSU(object):
def __init__(self, n):
self.father = list(range(n))
self.size = n
def union(self, x, s):
x = self.find(x)
s = self.find(s)
if x == s:
return
self.father[s] = x
self.si... | output | 1 | 45,757 | 14 | 91,515 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The characters are labeled from 1 to n. Every pair of two ... | instruction | 0 | 45,758 | 14 | 91,516 |
Tags: dfs and similar, dsu, graphs
Correct Solution:
```
def dfs(node, color):
if colors[node] > 0 and colors[node] != color:
# print(0)
# exit()
bipartite[0] = False
return
elif(colors[node] == 0):
colors[node] = color
for i in love[node]:
dfs(i, colo... | output | 1 | 45,758 | 14 | 91,517 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The charact... | instruction | 0 | 45,759 | 14 | 91,518 |
No | output | 1 | 45,759 | 14 | 91,519 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The charact... | instruction | 0 | 45,760 | 14 | 91,520 |
No | output | 1 | 45,760 | 14 | 91,521 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The charact... | instruction | 0 | 45,761 | 14 | 91,522 |
No | output | 1 | 45,761 | 14 | 91,523 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are many anime that are about "love triangles": Alice loves Bob, and Charlie loves Bob as well, but Alice hates Charlie. You are thinking about an anime which has n characters. The charact... | instruction | 0 | 45,762 | 14 | 91,524 |
No | output | 1 | 45,762 | 14 | 91,525 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,804 | 14 | 91,608 |
Tags: constructive algorithms
Correct Solution:
```
import math
str = input().split()
n = int(str[0])
m = int(str[1])
arr = [int(i) for i in input().split()]
su = 0
for k in range(m):
str1 = input().split()
n1 = int(str1[0])-1
m1 = int(str1[1])
k = arr[n1:m1]
z = sum(k)
if z>0:
su+= z... | output | 1 | 45,804 | 14 | 91,609 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,805 | 14 | 91,610 |
Tags: constructive algorithms
Correct Solution:
```
raw = input().split()
n = int(raw[0])
m = int(raw[1])
raw = input().split()
a = []
a.append(0)
s = 0
for i in range(n):
s += int(raw[i])
a.append(s)
res = 0
for i in range(m):
raw = input().split()
l = int(raw[0])
r = int(raw[1])
res += max(a[r... | output | 1 | 45,805 | 14 | 91,611 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,806 | 14 | 91,612 |
Tags: constructive algorithms
Correct Solution:
```
n, m = map(int, input().split())
a = list(map(int, input().split()))
pSums = (n + 1) * [0]
pSums[0] = 0
for i in range(1, n + 1):
pSums[i] = pSums[i - 1] + a[i - 1]
ans = 0
for i in range(m):
l, r = map(int, input().split())
curSum = pSums[r] - pSums[... | output | 1 | 45,806 | 14 | 91,613 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,807 | 14 | 91,614 |
Tags: constructive algorithms
Correct Solution:
```
n, m = map(int, input().split())
a = list(map(int, input().split()))
ans = 0
for i in range(m):
l, r = map(int, input().split())
ans += max(0, sum(a[l - 1:r]))
print(ans)
``` | output | 1 | 45,807 | 14 | 91,615 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,808 | 14 | 91,616 |
Tags: constructive algorithms
Correct Solution:
```
def findMood(arr, queries):
n = len(arr)
t = len(queries)
if n==0:
return 0
preSum = [arr[0]]
for i in range(1, n):
preSum.append(preSum[i-1]+arr[i])
maxm = float('-inf')
prevMax = float('-inf')
for i in range(t):
... | output | 1 | 45,808 | 14 | 91,617 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,809 | 14 | 91,618 |
Tags: constructive algorithms
Correct Solution:
```
cv,pm = map(int,input().split())
ss = list(map(int,input().split()))
pmlist = []
for i in range(pm):
pmlist.append(tuple(map(int,input().split())))
pmsum = 0
s = 0
for i in pmlist:
s = sum(ss[i[0]-1:i[1]])
#print(ss[i[0]-1:i[1]],'=',s)
pmsum+=s if s > ... | output | 1 | 45,809 | 14 | 91,619 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,810 | 14 | 91,620 |
Tags: constructive algorithms
Correct Solution:
```
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
si = lambda: input()
n, m = mi()
l = li()
h = 0
for _ in range(m): x, y = mi(); h += max(0, sum((l[k] for k in range(x-1, y))))
print(h)
``` | output | 1 | 45,810 | 14 | 91,621 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's define a subarray as a segment of consecutive flo... | instruction | 0 | 45,811 | 14 | 91,622 |
Tags: constructive algorithms
Correct Solution:
```
n, m = map(int, input().split())
a = list(map(int, input().split()))
res = 0
for i in range(m):
curr = 0
l, r = map(int, input().split())
for j in range(l - 1, r):
curr += a[j]
if curr > 0:
res += curr
print(res)
``` | output | 1 | 45,811 | 14 | 91,623 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,812 | 14 | 91,624 |
Yes | output | 1 | 45,812 | 14 | 91,625 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,813 | 14 | 91,626 |
Yes | output | 1 | 45,813 | 14 | 91,627 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,814 | 14 | 91,628 |
Yes | output | 1 | 45,814 | 14 | 91,629 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,815 | 14 | 91,630 |
Yes | output | 1 | 45,815 | 14 | 91,631 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,816 | 14 | 91,632 |
No | output | 1 | 45,816 | 14 | 91,633 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,817 | 14 | 91,634 |
No | output | 1 | 45,817 | 14 | 91,635 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,818 | 14 | 91,636 |
No | output | 1 | 45,818 | 14 | 91,637 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Little Alyona is celebrating Happy Birthday! Her mother has an array of n flowers. Each flower has some mood, the mood of i-th flower is ai. The mood can be positive, zero or negative.
Let's de... | instruction | 0 | 45,819 | 14 | 91,638 |
No | output | 1 | 45,819 | 14 | 91,639 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,820 | 14 | 91,640 |
Tags: brute force, implementation, math
Correct Solution:
```
import math
def lcm(a, b):
return a*b // math.gcd(a, b)
n, m, z = map(int, input().split())
print(z // lcm(n, m))
``` | output | 1 | 45,820 | 14 | 91,641 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,821 | 14 | 91,642 |
Tags: brute force, implementation, math
Correct Solution:
```
line = input().split(sep=" ")
n= int(line[0])
m= int(line[1])
z= int(line[2])
count = 0
for i in range(max(n,m),z+1):
if(i %n == 0 and i%m == 0):
count+=1
print(count)
``` | output | 1 | 45,821 | 14 | 91,643 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,822 | 14 | 91,644 |
Tags: brute force, implementation, math
Correct Solution:
```
def gcd(a, b):
if a == 0:
return b
return gcd(b % a, a)
def lcm(a, b):
return (a * b) / gcd(a, b)
n,m,z=map(int,input().split())
ele=lcm(n,m)
print(int(z/ele))
``` | output | 1 | 45,822 | 14 | 91,645 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,823 | 14 | 91,646 |
Tags: brute force, implementation, math
Correct Solution:
```
def gcd(x, y):
while y != 0:
x, y = y, x % y
return x
def lcm(x, y):
return (x * y) // gcd(x, y)
n, m, z = map(int, input().split())
print(z // lcm(n, m))
``` | output | 1 | 45,823 | 14 | 91,647 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,824 | 14 | 91,648 |
Tags: brute force, implementation, math
Correct Solution:
```
# Description of the problem can be found at http://codeforces.com/problemset/problem/764/A
n, m, z = map(int, input().split())
t = 0
for i in range(1, z // m + 1):
if (i * m) % n == 0:
t += 1
print(t)
``` | output | 1 | 45,824 | 14 | 91,649 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,825 | 14 | 91,650 |
Tags: brute force, implementation, math
Correct Solution:
```
n,m,z = [int(i) for i in input().split()]
count = 0
for i in range(1,z+1):
if (i%n == 0) and (i%m == 0):
count+=1
print(count)
``` | output | 1 | 45,825 | 14 | 91,651 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,826 | 14 | 91,652 |
Tags: brute force, implementation, math
Correct Solution:
```
def solve(n, m, z):
x = set(range(n, z+1, n))
y = set(range(m, z+1, m))
z = list(range(1, z+1))
c = 0
for i in z:
if i in x and i in y:
c += 1
return c
def main():
n, m, z = list(map(int, input().split()))
... | output | 1 | 45,826 | 14 | 91,653 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. Artists come to the comrade every m minutes, i.... | instruction | 0 | 45,827 | 14 | 91,654 |
Tags: brute force, implementation, math
Correct Solution:
```
#Taymyr is calling you
n,m,z = map(int,input().split())
c = 0
li1,li2 = [],[]
for i in range(n,z+1,n):
li1.append(i)
for i in range(m,z+1,m):
li2.append(i)
for i in li2:
if i in li1:
c+=1
print(c)
``` | output | 1 | 45,827 | 14 | 91,655 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,828 | 14 | 91,656 |
Yes | output | 1 | 45,828 | 14 | 91,657 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,829 | 14 | 91,658 |
Yes | output | 1 | 45,829 | 14 | 91,659 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,830 | 14 | 91,660 |
Yes | output | 1 | 45,830 | 14 | 91,661 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,831 | 14 | 91,662 |
Yes | output | 1 | 45,831 | 14 | 91,663 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,832 | 14 | 91,664 |
No | output | 1 | 45,832 | 14 | 91,665 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,833 | 14 | 91,666 |
No | output | 1 | 45,833 | 14 | 91,667 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,834 | 14 | 91,668 |
No | output | 1 | 45,834 | 14 | 91,669 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist.
Ilia-alpinist calls every n minutes, i.e. in minutes n, 2n, 3n and so on. ... | instruction | 0 | 45,835 | 14 | 91,670 |
No | output | 1 | 45,835 | 14 | 91,671 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,876 | 14 | 91,752 |
Tags: data structures, dp, greedy
Correct Solution:
```
n = int(input())
m = list(map(int, input().split()))
starts = sorted([(i - m[i], i) for i in range(n)], reverse = True)
cur = answer = 0
for i in range(n):
while starts[-1][1] < i:
starts.pop()
cur = max(cur, i - starts[-1][0])
answer += cur - ... | output | 1 | 45,876 | 14 | 91,753 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,877 | 14 | 91,754 |
Tags: data structures, dp, greedy
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
ma = [1] * n
for i in range(1, n):
ma[i] = max(ma[i - 1], a[i] + 1)
for i in range(n - 2, -1, -1):
ma[i] = max(ma[i + 1] - 1, ma[i])
print(sum(ma) - sum(a) - n)
# Made By Mostafa_Khaled
``` | output | 1 | 45,877 | 14 | 91,755 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,878 | 14 | 91,756 |
Tags: data structures, dp, greedy
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
b=[]
maxi=0
for i in range(n):
maxi=max(maxi,a[i]+1)
b.append(maxi)
c=[]
count=b[-1]
for i in range(n-1,-1,-1):
if count-1>=b[i]:
count-=1
c.append(count)
else:
c.append(count)... | output | 1 | 45,878 | 14 | 91,757 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,879 | 14 | 91,758 |
Tags: data structures, dp, greedy
Correct Solution:
```
n = int(input())
m = input().split()
t = []
for i in range(n):
m[i] = int(m[i])
if i == 0:
t.append(m[i]+1)
else:
t.append(max(t[i-1], m[i]+1))
s = t[n-1] - m[n-1] - 1
for i in range(n-2, -1, -1):
if t[i] < t[i+1]-1:
t[i] = ... | output | 1 | 45,879 | 14 | 91,759 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,880 | 14 | 91,760 |
Tags: data structures, dp, greedy
Correct Solution:
```
import math,sys,bisect,heapq
from collections import defaultdict,Counter,deque
from itertools import groupby,accumulate
#sys.setrecursionlimit(200000000)
input = iter(sys.stdin.buffer.read().decode().splitlines()).__next__
ilele = lambda: map(int,input().split())
... | output | 1 | 45,880 | 14 | 91,761 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,881 | 14 | 91,762 |
Tags: data structures, dp, greedy
Correct Solution:
```
N = int(input())
above = list(map(int, input().split()))
if N == 1:
print(0)
quit()
required_mark = [0] * N
required_mark[N-2] = above[N-1]
for i in reversed(range(N-2)):
required_mark[i] = max(above[i+1], required_mark[i+1] - 1)
d = 0
mark = 1
for ... | output | 1 | 45,881 | 14 | 91,763 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,882 | 14 | 91,764 |
Tags: data structures, dp, greedy
Correct Solution:
```
n = int(input())
l = list(map(int,input().split()))
dp = [1 for i in range(n)]
m=0
for i in range(1,n):
dp[i] = max(dp[i-1],l[i]+1)
for i in range(n-2,-1,-1):
dp[i] = max(dp[i],dp[i+1]-1)
ans=0
for i in range(n):
ans+=dp[i]-l[i]-1
print(ans)
``` | output | 1 | 45,882 | 14 | 91,765 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,883 | 14 | 91,766 |
Tags: data structures, dp, greedy
Correct Solution:
```
n = int(input())
above = list(map(int, input().split()))
total = [x + 1 for x in above]
# ensure at most increase by one
for i in range(0,n-1)[::-1]:
total[i] = max(total[i], total[i+1] - 1)
# ensure nondecreasing
for i in range(1,n):
total[i] = max(to... | output | 1 | 45,883 | 14 | 91,767 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Arkady decides to observe a river for n consecutive days. The river's water level on each day is equal to some real value.
Arkady goes to the riverside each day and makes a mark on the side of the channel at the height of the water level, b... | instruction | 0 | 45,884 | 14 | 91,768 |
Tags: data structures, dp, greedy
Correct Solution:
```
from sys import stdin, stdout
from collections import Counter, defaultdict
from itertools import permutations, combinations
raw_input = stdin.readline
pr = stdout.write
def in_num():
return int(raw_input())
def in_arr():
return map(int,raw_input().spli... | output | 1 | 45,884 | 14 | 91,769 |
Provide a correct Python 3 solution for this coding contest problem.
There are 2N people numbered 1 through 2N. The height of Person i is h_i.
How many ways are there to make N pairs of people such that the following conditions are satisfied? Compute the answer modulo 998,244,353.
* Each person is contained in exact... | instruction | 0 | 45,931 | 14 | 91,862 |
"Correct Solution:
```
ROOT = 3
MOD = 998244353
roots = [pow(ROOT,(MOD-1)>>i,MOD) for i in range(24)] # 1 の 2^i 乗根
iroots = [pow(x,MOD-2,MOD) for x in roots] # 1 の 2^i 乗根の逆元
def untt(a,n):
for i in range(n):
m = 1<<(n-i-1)
for s in range(1<<i):
w_N = 1
s *= m*2
... | output | 1 | 45,931 | 14 | 91,863 |
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