結果
| 問題 |
No.1323 うしらずSwap
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 19:54:40 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,911 bytes |
| コンパイル時間 | 259 ms |
| コンパイル使用メモリ | 82,336 KB |
| 実行使用メモリ | 434,908 KB |
| 最終ジャッジ日時 | 2025-06-12 19:55:28 |
| 合計ジャッジ時間 | 6,433 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 13 TLE * 1 -- * 45 |
ソースコード
import sys
from collections import deque
def main():
H, W, ra, ca, rb, cb = map(int, sys.stdin.readline().split())
ra -= 1
ca -= 1
rb -= 1
cb -= 1
grid = []
for _ in range(H):
line = sys.stdin.readline().strip()
grid.append(line)
dirs = [(-1, 0), (1, 0), (0, -1), (0, 1)]
target_a = (rb, cb)
target_b = (ra, ca)
initial_state = (ra, ca, rb, cb)
target_state = (rb, cb, ra, ca)
visited = {}
queue = deque()
queue.append((initial_state[0], initial_state[1], initial_state[2], initial_state[3], 0))
visited[(initial_state[0], initial_state[1], initial_state[2], initial_state[3])] = True
found = False
answer = -1
while queue:
a_r, a_c, b_r, b_c, steps = queue.popleft()
if (a_r, a_c) == target_a and (b_r, b_c) == target_b:
answer = steps
found = True
break
for dr, dc in dirs:
new_a_r = a_r + dr
new_a_c = a_c + dc
if 0 <= new_a_r < H and 0 <= new_a_c < W:
if grid[new_a_r][new_a_c] == '.' and (new_a_r, new_a_c) != (b_r, b_c):
if (new_a_r, new_a_c, b_r, b_c) not in visited:
visited[(new_a_r, new_a_c, b_r, b_c)] = True
queue.append((new_a_r, new_a_c, b_r, b_c, steps + 1))
for dr, dc in dirs:
new_b_r = b_r + dr
new_b_c = b_c + dc
if 0 <= new_b_r < H and 0 <= new_b_c < W:
if grid[new_b_r][new_b_c] == '.' and (new_b_r, new_b_c) != (a_r, a_c):
if (a_r, a_c, new_b_r, new_b_c) not in visited:
visited[(a_r, a_c, new_b_r, new_b_c)] = True
queue.append((a_r, a_c, new_b_r, new_b_c, steps + 1))
print(answer)
if __name__ == "__main__":
main()
gew1fw