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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We have a canvas divided into a grid with H rows and W columns. The square at the i-th row from the top and the j-th column from the left is represented as (i, j). Initially, all the squares are...
instruction
0
7,376
7
14,752
Yes
output
1
7,376
7
14,753
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We have a canvas divided into a grid with H rows and W columns. The square at the i-th row from the top and the j-th column from the left is represented as (i, j). Initially, all the squares are...
instruction
0
7,377
7
14,754
Yes
output
1
7,377
7
14,755
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We have a canvas divided into a grid with H rows and W columns. The square at the i-th row from the top and the j-th column from the left is represented as (i, j). Initially, all the squares are...
instruction
0
7,378
7
14,756
No
output
1
7,378
7
14,757
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We have a canvas divided into a grid with H rows and W columns. The square at the i-th row from the top and the j-th column from the left is represented as (i, j). Initially, all the squares are...
instruction
0
7,379
7
14,758
No
output
1
7,379
7
14,759
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We have a canvas divided into a grid with H rows and W columns. The square at the i-th row from the top and the j-th column from the left is represented as (i, j). Initially, all the squares are...
instruction
0
7,380
7
14,760
No
output
1
7,380
7
14,761
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. We have a canvas divided into a grid with H rows and W columns. The square at the i-th row from the top and the j-th column from the left is represented as (i, j). Initially, all the squares are...
instruction
0
7,381
7
14,762
No
output
1
7,381
7
14,763
Provide tags and a correct Python 3 solution for this coding contest problem. Evlampiy has found one more cool application to process photos. However the application has certain limitations. Each photo i has a contrast vi. In order for the processing to be truly of high quality, the application must receive at least ...
instruction
0
8,103
7
16,206
Tags: binary search, dp Correct Solution: ``` def f(m): global dp, sdp l = 0 for i in range(n): while l < n and v[l] < v[i] - m: l += 1 if l - 1 > i - k: dp[i] = False else: dp[i] = (sdp[i - k + 1] != sdp[l - 1]) sdp[i + 1] = sdp[i] + (1 if...
output
1
8,103
7
16,207
Provide tags and a correct Python 3 solution for this coding contest problem. Evlampiy has found one more cool application to process photos. However the application has certain limitations. Each photo i has a contrast vi. In order for the processing to be truly of high quality, the application must receive at least ...
instruction
0
8,104
7
16,208
Tags: binary search, dp Correct Solution: ``` from bisect import bisect_left, bisect_right class Result: def __init__(self, index, value): self.index = index self.value = value class BinarySearch: def __init__(self): pass @staticmethod def greater_than(num: int, func, size: ...
output
1
8,104
7
16,209
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Evlampiy has found one more cool application to process photos. However the application has certain limitations. Each photo i has a contrast vi. In order for the processing to be truly of high ...
instruction
0
8,105
7
16,210
No
output
1
8,105
7
16,211
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Evlampiy has found one more cool application to process photos. However the application has certain limitations. Each photo i has a contrast vi. In order for the processing to be truly of high ...
instruction
0
8,106
7
16,212
No
output
1
8,106
7
16,213
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Evlampiy has found one more cool application to process photos. However the application has certain limitations. Each photo i has a contrast vi. In order for the processing to be truly of high ...
instruction
0
8,107
7
16,214
No
output
1
8,107
7
16,215
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Evlampiy has found one more cool application to process photos. However the application has certain limitations. Each photo i has a contrast vi. In order for the processing to be truly of high ...
instruction
0
8,108
7
16,216
No
output
1
8,108
7
16,217
Provide a correct Python 3 solution for this coding contest problem. D: Two Colors Sort problem During the walk, umg found a sequence of length N, P_1, P_2, ..., P_N, which can be made by rearranging 1,2, ..., N. umg can use mysterious powers to exchange places by choosing two different numbers painted in the same ...
instruction
0
8,358
7
16,716
"Correct Solution: ``` N, R = map(int, input().split()) if 2*R > N: R = N - R P = [0] + list(map(int, input().split())) L = [] Lapp = L.append used = [False]*(N+1) pre = 0 for i in range(1, N+1): cnt = 0 while not used[i]: used[i] = True cnt += 1 i = P[i] if cnt: Lapp(cn...
output
1
8,358
7
16,717
Provide a correct Python 3 solution for this coding contest problem. D: Two Colors Sort problem During the walk, umg found a sequence of length N, P_1, P_2, ..., P_N, which can be made by rearranging 1,2, ..., N. umg can use mysterious powers to exchange places by choosing two different numbers painted in the same ...
instruction
0
8,359
7
16,718
"Correct Solution: ``` import sys N, R = map(int, input().split()) if 2*R > N: R = N - R P = [0] + list(map(int, input().split())) L = [] used = [False]*(N+1) pre = 0 for i in range(1, N+1): cnt = 0 while not used[i]: used[i] = True cnt += 1 i = P[i] if cnt: L.append(cn...
output
1
8,359
7
16,719
Provide tags and a correct Python 3 solution for this coding contest problem. Little Petya loves counting. He wants to count the number of ways to paint a rectangular checkered board of size n × m (n rows, m columns) in k colors. Besides, the coloring should have the following property: for any vertical line that pass...
instruction
0
8,397
7
16,794
Tags: combinatorics, dp Correct Solution: ``` M, Mod = 10**3 + 3, 10**9 + 7 n, m, k = [int(x) for x in input().split()] if m == 0: print(0) elif m == 1: print(pow(k, n, Mod)) else: C = [[0 for j in range(M)] for i in range(M)] for i in range(n + 1): C[i][0] = 1 for j in range(1, i + 1): ...
output
1
8,397
7
16,795
Provide tags and a correct Python 3 solution for this coding contest problem. Little Petya loves counting. He wants to count the number of ways to paint a rectangular checkered board of size n × m (n rows, m columns) in k colors. Besides, the coloring should have the following property: for any vertical line that pass...
instruction
0
8,398
7
16,796
Tags: combinatorics, dp Correct Solution: ``` n, m, k = [int(x) for x in input().split()] mod = int(10**9 + 7) if m == 1: print(pow(k, n, mod)) exit() ans = 0 fac = [1] ifac = [1] tav = [0] for i in range(1, max(k + 1, n + 1)): fac.append((fac[i - 1] * i) % mod) for i in range(1, min(k + 1, n + 1)): ...
output
1
8,398
7
16,797
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Petya loves counting. He wants to count the number of ways to paint a rectangular checkered board of size n × m (n rows, m columns) in k colors. Besides, the coloring should have the foll...
instruction
0
8,399
7
16,798
No
output
1
8,399
7
16,799
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Petya loves counting. He wants to count the number of ways to paint a rectangular checkered board of size n × m (n rows, m columns) in k colors. Besides, the coloring should have the foll...
instruction
0
8,400
7
16,800
No
output
1
8,400
7
16,801
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Petya loves counting. He wants to count the number of ways to paint a rectangular checkered board of size n × m (n rows, m columns) in k colors. Besides, the coloring should have the foll...
instruction
0
8,401
7
16,802
No
output
1
8,401
7
16,803
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Petya loves counting. He wants to count the number of ways to paint a rectangular checkered board of size n × m (n rows, m columns) in k colors. Besides, the coloring should have the foll...
instruction
0
8,402
7
16,804
No
output
1
8,402
7
16,805
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,462
7
16,924
"Correct Solution: ``` s=list(input()) i=0 l=len(s)-1 t=0 while i<=l : a=s[i] c=0 if s[i]!=s[l]: print(0) exit() while i<=l and s[i]==a: c+=1 i+=1 while i<=l and s[l]==a: c+=1 l-=1 if c<=2 and i<l: print(0) exit() if c>1: print...
output
1
8,462
7
16,925
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,463
7
16,926
"Correct Solution: ``` from collections import defaultdict as dd s=input() l=[s[0]] n=s[0] d=dd(int) d[s[0]]+=1 cou=1 li=[] for i in range(1,len(s)): d[s[i]]+=1 if(s[i]==n): cou+=1 if(s[i]!=n): l.append(s[i]) n=s[i] li.append(cou) cou=1 li.append(cou) #print(l,d) if(...
output
1
8,463
7
16,927
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,464
7
16,928
"Correct Solution: ``` #!/usr/bin/env python3 from functools import lru_cache, reduce from sys import setrecursionlimit import math ran = [] def success(i): if ran[i][1]+1<3: return False l = i r = i while l>=0 and r<len(ran): if ran[l][0] != ran[r][0] or ran[l][1] + ran[r][1] < 3: ...
output
1
8,464
7
16,929
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,465
7
16,930
"Correct Solution: ``` s = list(input()) p0 = 0 p1 = len(s)-1 if(s[p0]!= s[p1]): print(0) else: possible = 1 curr_len = 2 while p1 > p0: if s[p0+1] == s[p0]: curr_len += 1 p0+=1 elif s[p1-1] == s[p1]: curr_len += 1 p1-=1 else: ...
output
1
8,465
7
16,931
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,466
7
16,932
"Correct Solution: ``` from itertools import groupby s = input() lst = [] grp_i = [] for i, grp in groupby(s): grp_i.append(i) lst.append(list(grp)) if len(grp_i) % 2 == 0 or grp_i != grp_i[::-1]: print(0) else: mid = grp_i[len(grp_i)//2] nm = len(grp_i)//2 l = nm -1 r = nm + 1 ln = le...
output
1
8,466
7
16,933
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,467
7
16,934
"Correct Solution: ``` S = input().strip() P = [] j = 0 for i in range(1, len(S)+1): if i == len(S) or S[i] != S[j]: P.append((S[j], i-j)) j = i l = 0 r = len(P)-1 while l < r: if P[l][0] != P[r][0] or P[l][1] + P[r][1] < 3: break l += 1 r -= 1 if l == r and P[l][1] >= 2: pr...
output
1
8,467
7
16,935
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,468
7
16,936
"Correct Solution: ``` def main(): freq = [] symb = [] s = input() symb.append(s[0]); freq.append(1); for ch in s[1:]: if ch == symb[-1]: freq[-1] += 1 continue symb.append(ch) freq.append(1) if (len(freq) % 2 == 0) or (freq[len(freq) // 2] == ...
output
1
8,468
7
16,937
Provide a correct Python 3 solution for this coding contest problem. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to the left of all the balls, or to the right of all the ball...
instruction
0
8,469
7
16,938
"Correct Solution: ``` #!/usr/bin/env python3 import sys def main_proc(): res = 0 data = sys.stdin.buffer.read() data = data.strip() s = 0; e = len(data) - 1 while True: cnt = 0 if data[s] != data[e]: break t = s while data[s] == data[t] and t != e: t += 1; cnt += 1...
output
1
8,469
7
16,939
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,470
7
16,940
Yes
output
1
8,470
7
16,941
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,471
7
16,942
Yes
output
1
8,471
7
16,943
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,472
7
16,944
Yes
output
1
8,472
7
16,945
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,473
7
16,946
Yes
output
1
8,473
7
16,947
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,474
7
16,948
No
output
1
8,474
7
16,949
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,475
7
16,950
No
output
1
8,475
7
16,951
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,476
7
16,952
No
output
1
8,476
7
16,953
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Balph is learning to play a game called Buma. In this game, he is given a row of colored balls. He has to choose the color of one new ball and the place to insert it (between two balls, or to th...
instruction
0
8,477
7
16,954
No
output
1
8,477
7
16,955
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. This is an interactive task. We have 2N balls arranged in a row, numbered 1, 2, 3, ..., 2N from left to right, where N is an odd number. Among them, there are N red balls and N blue balls. Whi...
instruction
0
8,872
7
17,744
No
output
1
8,872
7
17,745
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. This is an interactive task. We have 2N balls arranged in a row, numbered 1, 2, 3, ..., 2N from left to right, where N is an odd number. Among them, there are N red balls and N blue balls. Whi...
instruction
0
8,873
7
17,746
No
output
1
8,873
7
17,747
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. This is an interactive task. We have 2N balls arranged in a row, numbered 1, 2, 3, ..., 2N from left to right, where N is an odd number. Among them, there are N red balls and N blue balls. Whi...
instruction
0
8,874
7
17,748
No
output
1
8,874
7
17,749
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. This is an interactive task. We have 2N balls arranged in a row, numbered 1, 2, 3, ..., 2N from left to right, where N is an odd number. Among them, there are N red balls and N blue balls. Whi...
instruction
0
8,875
7
17,750
No
output
1
8,875
7
17,751
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,565
7
19,130
Tags: greedy, math, number theory Correct Solution: ``` #!/usr/bin/python3 import sys n = int(sys.stdin.readline()) a = [int(x) for x in sys.stdin.readline().split()] def is_valid(s, k): # Ali lahko zapakiramo s steklenic v škatle velikosti k in k + 1? # s = x * k + y * (k + 1) = (x + y) * k + y, kjer je 0 <=...
output
1
9,565
7
19,131
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,566
7
19,132
Tags: greedy, math, number theory Correct Solution: ``` # -*- coding: utf-8 -*- """ Created on Sun Apr 2 22:42:34 2017 @author: Sean38 """ n = int(input().rstrip()) s = input() a = [int(ch) for ch in s.split()] a = a[0:n] a.sort() def check_num(p, i): # i = ap + b(p+1) # min(a+b) <=> max(b) # b(p+1) <=...
output
1
9,566
7
19,133
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,567
7
19,134
Tags: greedy, math, number theory Correct Solution: ``` #!/usr/bin/env python3 # solution after hint:( from math import sqrt n = int(input().strip()) ais = list(map(int, input().strip().split())) ais.sort(reverse=True) xmax = int(sqrt(ais[0])) # {x, x + 1} def check(x): q = 0 for ai in ais: qi = -((-ai) // (...
output
1
9,567
7
19,135
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,569
7
19,138
Tags: greedy, math, number theory Correct Solution: ``` def judge(lists, x): ans = 0 for i in lists: t = i//x d = i%x if d == 0: ans += t elif t+d >= x-1: ans += t+1 else: return -1 return ans while True: try: n = inpu...
output
1
9,569
7
19,139
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,570
7
19,140
Tags: greedy, math, number theory Correct Solution: ``` import time import sys from math import sqrt n = int(input()) a = list(map(int, input().split())) sq = int(sqrt(a[0]))+2 s = set() for box in range(1, sq): if a[0] % box == 0: s.add(a[0] // box) s.add(a[0] // box - 1) else: s.add...
output
1
9,570
7
19,141
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,571
7
19,142
Tags: greedy, math, number theory Correct Solution: ``` import bisect from itertools import accumulate import os import sys import math from decimal import * from io import BytesIO, IOBase BUFSIZE = 8192 class FastIO(IOBase): newlines = 0 def __init__(self, file): self._fd = file.fileno() ...
output
1
9,571
7
19,143
Provide tags and a correct Python 3 solution for this coding contest problem. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls into sets such that: * each ball belongs to ...
instruction
0
9,572
7
19,144
Tags: greedy, math, number theory Correct Solution: ``` from math import sqrt def divide_into_p(p, a): q = a // (p+1) r = a % (p+1) if r == 0: return q elif q + r >= p: return q+1 else: return None def divisible_into_p(p, lst): lgth = 0 for l in lst: dp = di...
output
1
9,572
7
19,145
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls ...
instruction
0
9,573
7
19,146
No
output
1
9,573
7
19,147
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls ...
instruction
0
9,574
7
19,148
No
output
1
9,574
7
19,149
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n boxes with colored balls on the table. Colors are numbered from 1 to n. i-th box contains ai balls, all of which have color i. You have to write a program that will divide all balls ...
instruction
0
9,575
7
19,150
No
output
1
9,575
7
19,151