結果
| 問題 |
No.102 トランプを奪え
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 13:49:42 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,654 bytes |
| コンパイル時間 | 193 ms |
| コンパイル使用メモリ | 82,560 KB |
| 実行使用メモリ | 150,952 KB |
| 最終ジャッジ日時 | 2025-06-12 13:50:05 |
| 合計ジャッジ時間 | 11,901 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 6 TLE * 1 -- * 1 |
ソースコード
from functools import lru_cache
def main():
import sys
N = list(map(int, sys.stdin.readline().split()))
S = sum(N)
N_tuple = tuple(N)
@lru_cache(maxsize=None)
def play(piles, taro_hand, turn):
sum_piles = sum(piles)
jiro_hand = S - taro_hand - sum_piles
if sum_piles == 0:
if taro_hand > jiro_hand:
return 1 # Taro wins
elif taro_hand < jiro_hand:
return -1 # Jiro wins
else:
return 0 # Draw
if turn:
# Taro's turn; he wants to maximize the outcome
max_score = -2 # worst case
for i in range(4):
for k in range(1, 4):
if piles[i] >= k:
new_piles = list(piles)
new_piles[i] -= k
new_piles = tuple(new_piles)
new_taro = taro_hand + k
new_jiro = jiro_hand
# Check if this move empties the pile
if new_piles[i] == 0:
stolen = (new_jiro + 1) // 2
new_taro += stolen
new_jiro -= stolen
# Recurse
score = play(new_piles, new_taro, False)
if score > max_score:
max_score = score
return max_score if max_score != -2 else 0
else:
# Jiro's turn; he wants to minimize the outcome
min_score = 2 # worst case
for i in range(4):
for k in range(1, 4):
if piles[i] >= k:
new_piles = list(piles)
new_piles[i] -= k
new_piles = tuple(new_piles)
new_jiro = jiro_hand + k
new_taro = taro_hand
# Check if this move empties the pile
if new_piles[i] == 0:
stolen = (new_taro + 1) // 2
new_jiro += stolen
new_taro -= stolen
# Recurse
score = play(new_piles, new_taro, True)
if score < min_score:
min_score = score
return min_score if min_score != 2 else 0
result = play(N_tuple, 0, True)
if result > 0:
print("Taro")
elif result < 0:
print("Jiro")
else:
print("Draw")
if __name__ == "__main__":
main()
gew1fw