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 19:56:11 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,988 bytes |
| コンパイル時間 | 183 ms |
| コンパイル使用メモリ | 82,516 KB |
| 実行使用メモリ | 426,520 KB |
| 最終ジャッジ日時 | 2025-06-12 19:57:02 |
| 合計ジャッジ時間 | 6,469 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 * 13 TLE * 1 -- * 45 |
ソースコード
import sys
from collections import deque
def main():
H, W, r_a, c_a, r_b, c_b = map(int, sys.stdin.readline().split())
grid = []
for _ in range(H):
grid.append(sys.stdin.readline().strip())
# Directions: up, down, left, right
directions = [(-1, 0), (1, 0), (0, -1), (0, 1)]
# BFS Initialization
queue = deque()
initial_state = (r_a - 1, c_a - 1, r_b - 1, c_b - 1)
queue.append((initial_state[0], initial_state[1], initial_state[2], initial_state[3], 0))
visited = set()
visited.add((initial_state[0], initial_state[1], initial_state[2], initial_state[3]))
target = (r_b - 1, c_b - 1, r_a - 1, c_a - 1)
while queue:
x1, y1, x2, y2, steps = queue.popleft()
# Check if current state is the target
if (x1, y1, x2, y2) == target:
print(steps)
return
# Generate all possible moves for cow
for dx, dy in directions:
new_x1 = x1 + dx
new_y1 = y1 + dy
if 0 <= new_x1 < H and 0 <= new_y1 < W:
if grid[new_x1][new_y1] != '#' and (new_x1, new_y1) != (x2, y2):
new_state = (new_x1, new_y1, x2, y2)
if new_state not in visited:
visited.add(new_state)
queue.append((new_x1, new_y1, x2, y2, steps + 1))
# Generate all possible moves for girl
for dx, dy in directions:
new_x2 = x2 + dx
new_y2 = y2 + dy
if 0 <= new_x2 < H and 0 <= new_y2 < W:
if grid[new_x2][new_y2] != '#' and (new_x2, new_y2) != (x1, y1):
new_state = (x1, y1, new_x2, new_y2)
if new_state not in visited:
visited.add(new_state)
queue.append((x1, y1, new_x2, new_y2, steps + 1))
# If target is not reachable
print(-1)
if __name__ == "__main__":
main()
gew1fw