結果
| 問題 | No.1150 シュークリームゲーム(Easy) |
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 19:39:56 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,901 bytes |
| コンパイル時間 | 222 ms |
| コンパイル使用メモリ | 82,292 KB |
| 実行使用メモリ | 99,692 KB |
| 最終ジャッジ日時 | 2025-06-12 19:40:15 |
| 合計ジャッジ時間 | 5,704 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 16 WA * 27 |
ソースコード
import heapq
def main():
import sys
input = sys.stdin.read().split()
idx = 0
N = int(input[idx])
idx += 1
s = int(input[idx])
idx += 1
t = int(input[idx])
idx += 1
A = list(map(int, input[idx:idx + N]))
idx += N
# Convert to 1-based
prev = [0] * (N + 1)
next_ = [0] * (N + 1)
for i in range(1, N + 1):
prev[i] = i - 1 if i > 1 else N
next_[i] = i + 1 if i < N else 1
taken = [False] * (N + 1)
taken[s] = taken[t] = True
X = A[s - 1]
Y = A[t - 1]
heap315 = []
heap8128 = []
# Initialize heaps for 315
for a in [prev[s], next_[s]]:
if a != t and not taken[a]:
heapq.heappush(heap315, (-A[a - 1], a))
# Initialize heaps for 8128
for a in [prev[t], next_[t]]:
if a != s and not taken[a]:
heapq.heappush(heap8128, (-A[a - 1], a))
turn = '315'
while heap315 or heap8128:
if turn == '315':
if not heap315:
turn = '8128'
continue
val, node = heapq.heappop(heap315)
if taken[node]:
continue
X += (-val)
taken[node] = True
for neighbor in [prev[node], next_[node]]:
if not taken[neighbor]:
heapq.heappush(heap315, (-A[neighbor - 1], neighbor))
turn = '8128'
else:
if not heap8128:
turn = '315'
continue
val, node = heapq.heappop(heap8128)
if taken[node]:
continue
Y += (-val)
taken[node] = True
for neighbor in [prev[node], next_[node]]:
if not taken[neighbor]:
heapq.heappush(heap8128, (-A[neighbor - 1], neighbor))
turn = '315'
print(X - Y)
if __name__ == '__main__':
main()
gew1fw