結果
問題 | No.995 タピオカオイシクナーレ |
ユーザー |
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提出日時 | 2020-02-21 23:40:23 |
言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
結果 |
AC
|
実行時間 | 76 ms / 2,000 ms |
コード長 | 1,758 bytes |
コンパイル時間 | 137 ms |
コンパイル使用メモリ | 12,800 KB |
実行使用メモリ | 15,744 KB |
最終ジャッジ日時 | 2024-10-09 02:46:03 |
合計ジャッジ時間 | 2,299 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 23 |
ソースコード
import sys sys.setrecursionlimit(10 ** 6) from bisect import * from collections import * from heapq import * def II(): return int(sys.stdin.readline()) def MI(): return map(int, sys.stdin.readline().split()) def LI(): return list(map(int, sys.stdin.readline().split())) def SI(): return sys.stdin.readline()[:-1] def LLI(rows_number): return [LI() for _ in range(rows_number)] int1 = lambda x: int(x) - 1 def MI1(): return map(int1, sys.stdin.readline().split()) def LI1(): return list(map(int1, sys.stdin.readline().split())) p2D = lambda x: print(*x, sep="\n") dij = [(0, 1), (1, 0), (0, -1), (-1, 0)] class mint: def __init__(self, x): self.__x = x % md def __str__(self): return str(self.__x) def __add__(self, other): if isinstance(other, mint): other = other.__x return mint(self.__x + other) def __sub__(self, other): if isinstance(other, mint): other = other.__x return mint(self.__x - other) def __rsub__(self, other): return mint(other - self.__x) def __mul__(self, other): if isinstance(other, mint): other = other.__x return mint(self.__x * other) __radd__ = __add__ __rmul__ = __mul__ def __truediv__(self, other): if isinstance(other, mint): other = other.__x return mint(self.__x * pow(other, md - 2, md)) def __rtruediv__(self, other): return mint(other * pow(self.__x, md - 2, md)) def __pow__(self, power, modulo=None): return mint(pow(self.__x, power, md)) md = 10**9+7 def main(): n,m,k,p,q=MI() bb=[II() for _ in range(n)] tot=sum(bb) cup=sum(bb[:m]) even_p=(1+(1-2*mint(p)/q)**k)/2 ans=cup*even_p ans+=(tot-cup)*(1-even_p) print(ans) main()