結果
問題 |
No.616 へんなソート
|
ユーザー |
![]() |
提出日時 | 2020-06-09 19:03:32 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,020 bytes |
コンパイル時間 | 344 ms |
コンパイル使用メモリ | 82,500 KB |
実行使用メモリ | 855,936 KB |
最終ジャッジ日時 | 2025-01-02 13:59:25 |
合計ジャッジ時間 | 10,811 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 25 TLE * 1 MLE * 1 |
ソースコード
from operator import itemgetter from itertools import * from bisect import * from collections import * from heapq import * import sys sys.setrecursionlimit(10 ** 6) 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)] def LLI1(rows_number): return [LI1() 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 = [(1, 0), (0, 1), (-1, 0), (0, -1)] class mint: def __init__(self, x): self.__x = x % md def __repr__(self): return str(self.__x) def __neg__(self): return mint(-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,k=MI() LI() dp=[[0]*(k+1) for _ in range(n+1)] dp[0][0]=mint(1) for i in range(n): s=mint(0) w=n-i for j in range(k+1): s+=dp[i][j] if j-w>=0:s-=dp[i][j-w] dp[i+1][j]=s print(sum(dp[n])) main()