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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 length n. Each character is either one of the first k lowercase Latin letters or a question mark. You are asked to replace every question mark with one of the first ...
instruction
0
91,182
0
182,364
No
output
1
91,182
0
182,365
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 length n. Each character is either one of the first k lowercase Latin letters or a question mark. You are asked to replace every question mark with one of the first ...
instruction
0
91,183
0
182,366
No
output
1
91,183
0
182,367
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 length n. Each character is either one of the first k lowercase Latin letters or a question mark. You are asked to replace every question mark with one of the first ...
instruction
0
91,184
0
182,368
No
output
1
91,184
0
182,369
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 length n. Each character is either one of the first k lowercase Latin letters or a question mark. You are asked to replace every question mark with one of the first ...
instruction
0
91,185
0
182,370
No
output
1
91,185
0
182,371
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,311
0
182,622
Tags: greedy, sortings Correct Solution: ``` n=int(input()) l=sorted([int(i) for i in input().split()],reverse=True) l1=[0]*n l1[0]=l[0] s=l[0] for i in range(1,n): k=min(l[i],l1[i-1]-1) s+=k l1[i]=k if(k==0): break print(s) ```
output
1
91,311
0
182,623
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,312
0
182,624
Tags: greedy, sortings Correct Solution: ``` n=int(input()) l=[int(x) for x in input().split()] l.sort() ans=0 for i in range(n): val=l[i] while (val>0) and val in l[:i]: val-=1 l[i]=val ans+=val print(ans) ```
output
1
91,312
0
182,625
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,313
0
182,626
Tags: greedy, sortings Correct Solution: ``` """ B. Making a String codeforces.com """ _, nums = input(), [int(x) for x in input().split(' ')] nums.sort() nums.reverse() result = nums[0] prev = nums[0] for n in nums[1:]: n = prev-1 if n >= prev else n result += n prev = n if n == 0: break print...
output
1
91,313
0
182,627
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,314
0
182,628
Tags: greedy, sortings Correct Solution: ``` n = int(input()) l = list(map(int,input().split())) l.sort(reverse = 1) for i in range(1, n): if l[i] >= l[i-1]: l[i] = l[i-1]-1 if l[i] < 0: l[i] = 0 print(sum(l)) ```
output
1
91,314
0
182,629
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,315
0
182,630
Tags: greedy, sortings Correct Solution: ``` def main(): n = int(input()) a = [int(x) for x in input().split()] print(solver(a)) def solver(L): L.sort(reverse = True) total = 0 current = L[0] + 1 for i in range(len(L)): if L[i] >= current: current -= 1 if current <= 0: break else: current = L[i...
output
1
91,315
0
182,631
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,316
0
182,632
Tags: greedy, sortings Correct Solution: ``` n = int(input()) ai = list(map(int,input().split())) ai.sort() ai.reverse() last_num = ai[0]+1 ans = 0 for num in ai: if last_num == 0: break if num >= last_num: last_num -= 1 else: last_num = num ans += last_num print(ans) ```
output
1
91,316
0
182,633
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,317
0
182,634
Tags: greedy, sortings Correct Solution: ``` N = int(input()) ans = 0 used = set() for c in sorted([int(x) for x in input().split()], reverse=True): while c > 0 and c in used: c -= 1 ans += c used.add(c) print(ans) ```
output
1
91,317
0
182,635
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in the string no more than ai times; * the number...
instruction
0
91,318
0
182,636
Tags: greedy, sortings Correct Solution: ``` def make_s(lst): while True: lst.sort() for i in range(len(lst) - 1): if lst[i] == lst[i + 1]: lst[i] -= 1 break else: break return sum([x for x in lst if x > 0]) n = int(input()) a = [...
output
1
91,318
0
182,637
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,319
0
182,638
Yes
output
1
91,319
0
182,639
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,320
0
182,640
Yes
output
1
91,320
0
182,641
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,321
0
182,642
Yes
output
1
91,321
0
182,643
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,322
0
182,644
Yes
output
1
91,322
0
182,645
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,323
0
182,646
No
output
1
91,323
0
182,647
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,324
0
182,648
No
output
1
91,324
0
182,649
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,325
0
182,650
No
output
1
91,325
0
182,651
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an alphabet consisting of n letters, your task is to make a string of the maximum possible length so that the following conditions are satisfied: * the i-th letter occurs in th...
instruction
0
91,326
0
182,652
No
output
1
91,326
0
182,653
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,777
0
183,554
Tags: greedy Correct Solution: ``` n = int(input()) st = input().rstrip() newSt = [st[0]] p = 1 dele = 0 cmp = True brk = False while True: if p+1 > len(st): break if cmp: while newSt[-1] == st[p]: p += 1 dele += 1 if p+1 > len(st): br...
output
1
91,777
0
183,555
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,778
0
183,556
Tags: greedy Correct Solution: ``` n=int(input()) s=input() l=[] for i in range(0,n): if(len(l)%2==0 or s[i]!=l[-1]): l.append(s[i]) #print(l) if(len(l)%2!=0): l.pop() print(n-len(l)) print("".join(l)) else: print(n-len(l)) print("".join(l)) ```
output
1
91,778
0
183,557
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,779
0
183,558
Tags: greedy Correct Solution: ``` N = int(input()) S = input() ans = 0 res = "" i = 0 while i < N: if i < N - 1 and S[i] != S[i + 1]: res += S[i] res += S[i + 1] i += 2 elif i < N - 2 and S[i + 1] != S[i + 2]: res += S[i + 1] res += S[i + 2] ans += 1 i ...
output
1
91,779
0
183,559
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,780
0
183,560
Tags: greedy Correct Solution: ``` def fastio(): import sys from io import StringIO from atexit import register global input sys.stdin = StringIO(sys.stdin.read()) input = lambda : sys.stdin.readline().rstrip('\r\n') sys.stdout = StringIO() register(lambda : sys.__stdout__.write(sys.stdout.getvalue())) fastio(...
output
1
91,780
0
183,561
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,781
0
183,562
Tags: greedy Correct Solution: ``` n = int(input()) s = input() ans = [] ansn = 0 for i in range(len(s)): if not ansn % 2 or s[i] != s[i - 1]: ans.append(s[i]) ansn += 1 if ansn % 2: ansn -= 1 ans.pop() print(n - ansn) print(''.join(ans)) ```
output
1
91,781
0
183,563
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,782
0
183,564
Tags: greedy Correct Solution: ``` n=int(input()) s=[] i=0 j=1 a=input() while j<n: if a[i]==a[j]: j+=1 else: s+=a[i]+a[j] i=j+1 j+=2 print(n-len(s)) print("".join(s)) ```
output
1
91,782
0
183,565
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,783
0
183,566
Tags: greedy Correct Solution: ``` num=int(input()) st=input() res=[] for i in range(len(st)): if len(res)%2==0 or res[-1]!=st[i]: res.append(st[i]) if len(res)%2==1: res.pop() print(num-len(res)) print(''.join(map(str,res))) ```
output
1
91,783
0
183,567
Provide tags and a correct Python 3 solution for this coding contest problem. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the second, the third is different from the fourth, an...
instruction
0
91,784
0
183,568
Tags: greedy Correct Solution: ``` """ NTC here """ from sys import setcheckinterval,stdin setcheckinterval(1000) #print("Case #{}: {} {}".format(i, n + m, n * m)) iin=lambda :int(stdin.readline()) lin=lambda :list(map(int,stdin.readline().split())) n=iin() a=input() ch=0 ans=[] dlt=0 i=0 while i<n: if ch%2==0: ...
output
1
91,784
0
183,569
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,785
0
183,570
Yes
output
1
91,785
0
183,571
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,786
0
183,572
Yes
output
1
91,786
0
183,573
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,787
0
183,574
Yes
output
1
91,787
0
183,575
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,788
0
183,576
Yes
output
1
91,788
0
183,577
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,789
0
183,578
No
output
1
91,789
0
183,579
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,790
0
183,580
No
output
1
91,790
0
183,581
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,791
0
183,582
No
output
1
91,791
0
183,583
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (the first character is different from the sec...
instruction
0
91,792
0
183,584
No
output
1
91,792
0
183,585
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a string t and n strings s_1, s_2, ..., s_n. All strings consist of lowercase Latin letters. Let f(t, s) be the number of occurences of string s in string t. For example, f('aaabacaa', 'aa') = 3, and f('ababa', 'aba') = 2. Ca...
instruction
0
91,794
0
183,588
Tags: brute force, string suffix structures, strings Correct Solution: ``` class Node(object): def __init__(self): super(Node, self).__init__() self.next = [-1] * 26 self.trans = [] self.matches = 0 self.leaf = 0 self.link = 0 class AhoCorasick(object): def __ini...
output
1
91,794
0
183,589
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 t and n strings s_1, s_2, ..., s_n. All strings consist of lowercase Latin letters. Let f(t, s) be the number of occurences of string s in string t. For example, f('aaaba...
instruction
0
91,795
0
183,590
No
output
1
91,795
0
183,591
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,959
0
183,918
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` import sys, math import heapq from collections import deque input = sys.stdin.readline #input def ip(): return int(input()) def sp(): return str(input().rstrip()) def mip(): return map(int, input().split()) def msp(): ...
output
1
91,959
0
183,919
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,960
0
183,920
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` # by the authority of GOD author: manhar singh sachdev # import os,sys from io import BytesIO,IOBase def solve(n,ls): x,y = [i.count('0') for i in ls],[i.count('1')for i in ls] for i in range(3): for...
output
1
91,960
0
183,921
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,961
0
183,922
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` #!/usr/bin/env python import os import sys from io import BytesIO, IOBase def main(): for _ in range(int(input())): n = int(input()) a = [] a.append(input()) a.append(input()) ...
output
1
91,961
0
183,923
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,962
0
183,924
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` from bisect import * from collections import * from math import gcd,ceil,sqrt,floor,inf from heapq import * from itertools import * from operator import add,mul,sub,xor,truediv,floordiv from functools import * #-------...
output
1
91,962
0
183,925
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,963
0
183,926
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` import sys input=sys.stdin.readline t=int(input()) for _ in range(t): n=int(input()) ans=[] s1=input() s2=input() s3=input() fincount=0 count10=0 for i in range(2*n): if s1[i]=='0': count10+=1 ...
output
1
91,963
0
183,927
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,964
0
183,928
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` import sys,os from io import BytesIO,IOBase mod = 10**9+7; Mod = 998244353; INF = float('inf') # input = lambda: sys.stdin.readline().rstrip("\r\n") # inp = lambda: list(map(int,sys.stdin.readline().rstrip("\r\n").split()...
output
1
91,964
0
183,929
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,965
0
183,930
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` import sys from sys import stdin def solve(a,b,X): #print (a,b,X,file=sys.stderr) ans = [] ca = [a[i] for i in range(len(a))] cb = [b[i] for i in range(len(b))] while len(ca) > 0 or len(cb) > 0: ...
output
1
91,965
0
183,931
Provide tags and a correct Python 3 solution for this coding contest problem. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Novel Writing Contest. The writing prompt for the ...
instruction
0
91,966
0
183,932
Tags: constructive algorithms, greedy, implementation, strings, two pointers Correct Solution: ``` import sys input = sys.stdin.readline def main(): n = int(input()) S1 = input().strip() S2 = input().strip() S3 = input().strip() for s1 in (S1, S2, S3): for s2 in (S1, S2, S3): ...
output
1
91,966
0
183,933
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Nov...
instruction
0
91,967
0
183,934
Yes
output
1
91,967
0
183,935
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Nov...
instruction
0
91,968
0
183,936
Yes
output
1
91,968
0
183,937
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Nov...
instruction
0
91,969
0
183,938
Yes
output
1
91,969
0
183,939
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. A bitstring is a string that contains only the characters 0 and 1. Koyomi Kanou is working hard towards her dream of becoming a writer. To practice, she decided to participate in the Binary Nov...
instruction
0
91,970
0
183,940
Yes
output
1
91,970
0
183,941