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Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Fedya has a string S, initially empty, and an array W, also initially empty. There are n queries to process, one at a time. Query i consists of a lowercase English letter c_i and a nonnegative ...
instruction
0
11,756
0
23,512
No
output
1
11,756
0
23,513
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Fedya has a string S, initially empty, and an array W, also initially empty. There are n queries to process, one at a time. Query i consists of a lowercase English letter c_i and a nonnegative ...
instruction
0
11,757
0
23,514
No
output
1
11,757
0
23,515
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,860
0
23,720
Tags: greedy Correct Solution: ``` def cal(s): m=0;t=0 boo = True x=n;j=0 for i in s: if(i == 'T'): t+=1 else: m+=1 if t<m: boo=False return (t == 2*m and boo) for _ in range(int(input())): n = int(input()) s = input()...
output
1
11,860
0
23,721
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,861
0
23,722
Tags: greedy Correct Solution: ``` def solve(s,n): t,m=0,0 if True: for i in range(n): if s[i]=='T': t+=1 if s[i]=='M': m+=1 if t<m: print("NO") return t,m=0,0 for i in range(n-1,-1,-1): ...
output
1
11,861
0
23,723
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,862
0
23,724
Tags: greedy Correct Solution: ``` #!/usr/bin/env python import os import sys from io import BytesIO, IOBase import threading from bisect import bisect_right from math import gcd,log from collections import Counter,defaultdict from pprint import pprint from itertools import permutations from bisect import bisect_righ...
output
1
11,862
0
23,725
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,863
0
23,726
Tags: greedy Correct Solution: ``` from collections import defaultdict, deque import sys from math import gcd #import heapq input = sys.stdin.readline t = int(input().rstrip()) maxn = 2000005 Jc = [0 for i in range(maxn)]; mod = 10**9+7 for _ in range(t): n = int(input().rstrip()) #n,k = map(int,input().rstrip...
output
1
11,863
0
23,727
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,864
0
23,728
Tags: greedy Correct Solution: ``` def solve(n, s): t, m = [], [] for i in range(n): if s[i] == 'T': t.append(i) else: m.append(i) if len(t) != 2*len(m): return False for i in range(len(m)): if m[i] < t[i] or m[i] > t[i + len(m)]: retur...
output
1
11,864
0
23,729
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,865
0
23,730
Tags: greedy Correct Solution: ``` t = int(input()) for i in range(t): n = int(input()) s = str(input()) m = 0 for x in s: if x == 'M': m += 1 if m != n / 3: print("NO") continue cur = 0 f = True for x in s: if x == 'T': cur += 1 else: cur -= 1 if cur <...
output
1
11,865
0
23,731
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,866
0
23,732
Tags: greedy Correct Solution: ``` n=int(input()) for g in range(n): no=int(input()) s=input() t=[] m=[] for i in range(len(s)): if s[i]=='T': t.append(i) else: m.append(i) if len(t)!=2*len(m): print('NO') else: for i in range(len(m)): ...
output
1
11,866
0
23,733
Provide tags and a correct Python 3 solution for this coding contest problem. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow entered the sequence into the document at the sa...
instruction
0
11,867
0
23,734
Tags: greedy Correct Solution: ``` import sys from io import BytesIO, IOBase import heapq as h import bisect import math as mt from types import GeneratorType BUFSIZE = 8192 class SortedList: def __init__(self, iterable=[], _load=200): """Initialize sorted list instance.""" values = sorted(i...
output
1
11,867
0
23,735
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,868
0
23,736
Yes
output
1
11,868
0
23,737
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,869
0
23,738
Yes
output
1
11,869
0
23,739
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,870
0
23,740
Yes
output
1
11,870
0
23,741
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,871
0
23,742
Yes
output
1
11,871
0
23,743
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,872
0
23,744
No
output
1
11,872
0
23,745
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,873
0
23,746
No
output
1
11,873
0
23,747
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,874
0
23,748
No
output
1
11,874
0
23,749
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. The student council has a shared document file. Every day, some members of the student council write the sequence TMT (short for Towa Maji Tenshi) in it. However, one day, the members somehow e...
instruction
0
11,875
0
23,750
No
output
1
11,875
0
23,751
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,876
0
23,752
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` def main(): t=int(input()) allans=[] for _ in range(t): s=input() n=len(s) dp0=[0]*n # max len of beautiful ending with 0 here dp1=[0]*n # max len of beautiful ending w...
output
1
11,876
0
23,753
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,877
0
23,754
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` # Fast IO Region import os import sys from io import BytesIO, IOBase BUFSIZE = 8192 class FastIO(IOBase): newlines = 0 def __init__(self, file): self._fd = file.fileno() self.buffer = BytesIO() s...
output
1
11,877
0
23,755
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,878
0
23,756
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` import sys read=sys.stdin.buffer.read;readline=sys.stdin.buffer.readline;input=lambda:sys.stdin.readline().rstrip() import bisect,string,math,time,functools,random,fractions from bisect import* from heapq import heappush,heappo...
output
1
11,878
0
23,757
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,879
0
23,758
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` import bisect import copy import decimal import fractions import heapq import itertools import math import random import sys from collections import Counter, deque,defaultdict from functools import lru_cache,reduce from heapq i...
output
1
11,879
0
23,759
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,880
0
23,760
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` import math t=int(input()) for _ in range(t): s=input() b=[] for j in s: b.append(j) n=len(b) s=[] ans=1 dp=[0 for i in range(n)] la=0 dp[0]=1 for j in range(1,n): if ...
output
1
11,880
0
23,761
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,881
0
23,762
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` from sys import stdin from math import gcd input=lambda:stdin.readline().strip() for _ in range(int(input())): s=input() n=len(s) ans=-1 i=0 nd=0 sum1=0 while i<n: if s[i]=='?': i...
output
1
11,881
0
23,763
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,882
0
23,764
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` #!/usr/bin/env python import os import sys from io import BytesIO, IOBase import math from collections import Counter def func(array): num = 0 last_question = None last_number = None start = None first = N...
output
1
11,882
0
23,765
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string s consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it has the form 010101... or 101010...). Let's ca...
instruction
0
11,883
0
23,766
Tags: binary search, dp, greedy, implementation, strings, two pointers Correct Solution: ``` from collections import Counter def unstable(s): P = [None if c == '?' else ((c == '1') == (i % 2)) for (i, c) in enumerate(s)] q = 0 k = 0 r = None u = 0 for p in P: if p is None: ...
output
1
11,883
0
23,767
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,884
0
23,768
Yes
output
1
11,884
0
23,769
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,885
0
23,770
Yes
output
1
11,885
0
23,771
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,886
0
23,772
Yes
output
1
11,886
0
23,773
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,887
0
23,774
Yes
output
1
11,887
0
23,775
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,888
0
23,776
No
output
1
11,888
0
23,777
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,889
0
23,778
No
output
1
11,889
0
23,779
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,890
0
23,780
No
output
1
11,890
0
23,781
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 consisting of the characters 0, 1, and ?. Let's call a string unstable if it consists of the characters 0 and 1 and any two adjacent characters are different (i. e. it ...
instruction
0
11,891
0
23,782
No
output
1
11,891
0
23,783
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,928
0
23,856
Tags: implementation Correct Solution: ``` from math import * from collections import deque from copy import deepcopy import sys def inp(): return sys.stdin.readline().rstrip("\r\n") #for fast input def multi(): return map(int,input().split()) def strmulti(): return map(str, inp().split()) def lis(): return list(map(in...
output
1
11,928
0
23,857
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,929
0
23,858
Tags: implementation Correct Solution: ``` from sys import stdin from collections import defaultdict input = stdin.readline # ~ T = int(input()) T = 1 for t in range(1,T + 1): s = input() x = 0; y = 0 for i in s: x += (i == 'x') y += (i == 'y') if x > y: for i in range((x - y)): print('x',end = "") else...
output
1
11,929
0
23,859
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,930
0
23,860
Tags: implementation Correct Solution: ``` #"from dust i have come, dust i will be" s=input() x=0;y=0 for i in range(len(s)): if(s[i]=='x'): x+=1 else: y+=1 t="" if(x>y): for i in range(x-y): t+="x" else: for i in range(y-x): t+="y" print(t) ```
output
1
11,930
0
23,861
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,931
0
23,862
Tags: implementation Correct Solution: ``` s = input() y = s.count("y") x = s.count("x") t = abs(y-x) if y > x: print("y"*t) else: print("x"*t) ```
output
1
11,931
0
23,863
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,932
0
23,864
Tags: implementation Correct Solution: ``` s = input() x = 0 y = 0 for i in range(len(s)): if s[i] == 'x': x += 1 else: y += 1 if x > y : print('x' * (x - y)) elif x < y : print('y' * (y - x)) else: print('') ```
output
1
11,932
0
23,865
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,933
0
23,866
Tags: implementation Correct Solution: ``` s = input() x, y = s.count("x"), s.count("y") if x > y: print("x"*(x-y)) else: print("y"*(y-x)) ```
output
1
11,933
0
23,867
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,934
0
23,868
Tags: implementation Correct Solution: ``` def main(): stack = [] for c in input(): if stack and stack[-1] != c: del stack[-1] else: stack.append(c) print(''.join(reversed(stack))) if __name__ == '__main__': main() ```
output
1
11,934
0
23,869
Provide tags and a correct Python 3 solution for this coding contest problem. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime: 1. Find two consecut...
instruction
0
11,935
0
23,870
Tags: implementation Correct Solution: ``` s = input() xs = s.count("x") ys = s.count("y") if xs > ys: print("x" * (xs - ys)) else: print("y" * (ys - xs)) ```
output
1
11,935
0
23,871
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,936
0
23,872
Yes
output
1
11,936
0
23,873
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,937
0
23,874
Yes
output
1
11,937
0
23,875
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,938
0
23,876
Yes
output
1
11,938
0
23,877
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,939
0
23,878
Yes
output
1
11,939
0
23,879
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,940
0
23,880
No
output
1
11,940
0
23,881
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,941
0
23,882
No
output
1
11,941
0
23,883
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,942
0
23,884
No
output
1
11,942
0
23,885
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following...
instruction
0
11,943
0
23,886
No
output
1
11,943
0
23,887