結果
問題 | No.1299 Random Array Score |
ユーザー | marroncastle |
提出日時 | 2020-11-27 21:41:10 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 109 ms / 2,000 ms |
コード長 | 1,622 bytes |
コンパイル時間 | 285 ms |
コンパイル使用メモリ | 82,352 KB |
実行使用メモリ | 107,392 KB |
最終ジャッジ日時 | 2024-07-26 12:02:11 |
合計ジャッジ時間 | 4,593 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 34 |
ソースコード
MOD = 998244353 class ModInt: def __init__(self, x): self.x = x % MOD def __str__(self): return str(self.x) __repr__ = __str__ def __add__(self, other): return ( ModInt(self.x + other.x) if isinstance(other, ModInt) else ModInt(self.x + other) ) def __sub__(self, other): return ( ModInt(self.x - other.x) if isinstance(other, ModInt) else ModInt(self.x - other) ) def __mul__(self, other): return ( ModInt(self.x * other.x) if isinstance(other, ModInt) else ModInt(self.x * other) ) def __truediv__(self, other): return ( ModInt( self.x * pow(other.x, MOD - 2, MOD) ) if isinstance(other, ModInt) else ModInt(self.x * pow(other, MOD - 2, MOD)) ) __floordiv__ = __truediv__ def __pow__(self, other): return ( ModInt(pow(self.x, other.x, MOD)) if isinstance(other, ModInt) else ModInt(pow(self.x, other, MOD)) ) __radd__ = __add__ def __rsub__(self, other): return ( ModInt(other.x - self.x) if isinstance(other, ModInt) else ModInt(other - self.x) ) __rmul__ = __mul__ def __rtruediv__(self, other): return ( ModInt( other.x * pow(self.x, MOD - 2, MOD) ) if isinstance(other, ModInt) else ModInt(other * pow(self.x, MOD - 2, MOD)) ) def __rpow__(self, other): return ( ModInt(pow(other.x, self.x, MOD)) if isinstance(other, ModInt) else ModInt(pow(other, self.x, MOD)) ) N, K = map(int, input().split()) A = list(map(int, input().split())) S = ModInt(sum(A)) print(S*pow(ModInt(2),K))