結果

問題 No.145 yukiover
ユーザー 已经死了
提出日時 2025-03-03 14:04:11
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 220 ms / 5,000 ms
コード長 2,618 bytes
コンパイル時間 318 ms
コンパイル使用メモリ 82,256 KB
実行使用メモリ 98,448 KB
最終ジャッジ日時 2025-03-03 14:04:18
合計ジャッジ時間 6,616 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 20
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

import os,sys,random,threading
#sys.exit() 退
#sys.setrecursionlimit(10**6) #
from random import randint,choice,shuffle
#randint(a,b)[a,b]
#choice(seq)seq,,seq
#shuffle(x)x
from copy import deepcopy
from io import BytesIO,IOBase
from types import GeneratorType
from functools import lru_cache,reduce
#reduce(op,)
from bisect import bisect_left,bisect_right
#bisect_left(x) x
#bisect_right(x) x
from collections import Counter,defaultdict,deque
from itertools import accumulate,combinations,permutations
#accumulate(a)alist[0]
#combinations(a,k)ak
#permutations(a,k)ak
from heapq import heapify,heappop,heappush
#heapify
from typing import Generic,Iterable,Iterator,TypeVar,Union,List
from string import ascii_lowercase,ascii_uppercase,digits
#
from math import ceil,floor,sqrt,pi,factorial,gcd,log,log10,log2,inf
#ceilfloor sqrt factorial
from decimal import Decimal,getcontext
#Decimal(s) Decimal,使
#getcontext().prec=100
from sys import stdin, stdout, setrecursionlimit
input = lambda: sys.stdin.readline().rstrip("\r\n")
MI = lambda :map(int,input().split())
li = lambda :list(MI())
ii = lambda :int(input())
mod = int(1e9 + 7) #998244353
inf = 1<<60
py = lambda :print("YES")
pn = lambda :print("NO")
DIRS = [(0, 1), (1, 0), (0, -1), (-1, 0)] #
DIRS8 = [(0, 1), (1, 1), (1, 0), (1, -1), (0, -1), (-1, -1), (-1, 0),(-1, 1)] # →↘↓↙←↖↑↗
# https://github.com/EndlessCheng/codeforces-go/blob/master/copypasta/math_comb.go
# https://www.codechef.com/practice-old/tags/combinatorics
# https://yukicoder.me/problems?tags=%e9%a0%86%e5%88%97
# https://yukicoder.me/problems?tags=%e7%b5%84%e5%90%88%e3%81%9b
n=ii()
s=input()
t="yuki"
s=sorted(list(s))
l=0
r=n+1
def check(n,i,j):
if j==len(t):
return i+1>=n
if i+1<n:
return False
while i>=0 and s[i]>t[j]:
i-=1
n-=1
if n<=0:
return True
if s[i-n+1]<t[j]:
return False
#print(n,i-n,j+1)
return check(n,i-n,j+1)
while l+1!=r:
mid=(l+r)//2
#print(mid,"#")
if check(mid,n-1,0):
l=mid
else:
r=mid
print(l)
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