結果
| 問題 |
No.2731 Two Colors
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-04-19 22:26:37 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,482 bytes |
| コンパイル時間 | 506 ms |
| コンパイル使用メモリ | 82,304 KB |
| 実行使用メモリ | 132,276 KB |
| 最終ジャッジ日時 | 2024-10-11 15:56:48 |
| 合計ジャッジ時間 | 29,792 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 30 TLE * 3 |
ソースコード
import heapq
def solve(h, w, a):
col = [[-1] * w for _ in range(h)]
ans = 0
queue0 = [(a[0][0], 0, 0)]
queue1 = [(a[h-1][w-1], h-1, w-1)]
while True:
ans += 1
filled = False
while True:
if queue0:
_, i, j = heapq.heappop(queue0)
if col[i][j] != -1:
continue
filled = True
col[i][j] = 0
for di, dj in [(1, 0), (-1, 0), (0, 1), (0, -1)]:
ni, nj = i + di, j + dj
if ni < 0 or ni >= h or nj < 0 or nj >= w:
continue
if col[ni][nj] == 0:
continue
elif col[ni][nj] == 1:
return ans - 2
else:
heapq.heappush(queue0, (a[ni][nj], ni, nj))
if filled:
break
ans += 1
while True:
if queue1:
_, i, j = heapq.heappop(queue1)
if col[i][j] != -1:
continue
filled = True
col[i][j] = 1
for di, dj in [(1, 0), (-1, 0), (0, 1), (0, -1)]:
ni, nj = i + di, j + dj
if ni < 0 or ni >= h or nj < 0 or nj >= w:
continue
if col[ni][nj] == 1:
continue
elif col[ni][nj] == 0:
return ans - 2
else:
heapq.heappush(queue1, (a[ni][nj], ni, nj))
if filled:
break
def main():
h, w = [int(x) for x in input().split()]
a = [[int(x) for x in input().split()] for _ in range(h)]
print(solve(h, w, a))
if __name__ == "__main__":
main()