結果

問題 No.287 場合の数
ユーザー 已经死了
提出日時 2025-03-03 20:40:47
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 185 ms / 5,000 ms
コード長 2,366 bytes
コンパイル時間 433 ms
コンパイル使用メモリ 82,384 KB
実行使用メモリ 93,260 KB
最終ジャッジ日時 2025-03-03 20:40:54
合計ジャッジ時間 6,033 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
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 * 3
other AC * 22
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=%e7%b5%84%e5%90%88%e3%81%9b
from math import comb
def C(n,k):
if n<0 or k<0 or n<k:
return 0
return comb(n,k)
n=ii()
res=C(6*n+8-1,6*n)
for i in range(1,9):
x=6*n-i*(n+1)
if i%2==1:
res-=C(8,i)*C(x+8-1,x)
else:
res+=C(8,i)*C(x+8-1,x)
print(res)
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