結果
| 問題 |
No.2193 メガの下1桁
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 19:14:37 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,596 bytes |
| コンパイル時間 | 169 ms |
| コンパイル使用メモリ | 82,060 KB |
| 実行使用メモリ | 54,016 KB |
| 最終ジャッジ日時 | 2025-06-12 19:14:57 |
| 合計ジャッジ時間 | 3,043 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 33 WA * 7 |
ソースコード
def main():
import sys
M = int(sys.stdin.readline())
D = int(sys.stdin.readline())
N = int(sys.stdin.readline())
B = int(sys.stdin.readline())
if N == 0:
res = M % B
else:
D_mod = D % B
f = [0] * B
for x in range(B):
base = (x + D_mod) % B
exponent = x
if base == 0 and exponent == 0:
f[x] = 1 % B
else:
if exponent == 0:
f[x] = 1 % B
else:
f[x] = pow(base, exponent, B)
path = []
state_map = {}
current = M % B
state_map[current] = 0
path.append(current)
found = False
for step in range(1, N + 1):
current = f[current]
if current in state_map:
first_occurrence = state_map[current]
pre_cycle = path[:first_occurrence]
cycle = path[first_occurrence:]
cycle_length = len(cycle)
if N < first_occurrence:
res = path[N]
else:
remaining = N - first_occurrence
pos_in_cycle = remaining % cycle_length
res = cycle[pos_in_cycle]
found = True
break
else:
state_map[current] = step
path.append(current)
if not found:
res = current
if res == 10:
print('A')
else:
print(res)
if __name__ == "__main__":
main()
gew1fw