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
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 * 34
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

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))
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