結果
| 問題 |
No.3063 Circle Balancing
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-16 15:22:28 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 1,391 bytes |
| コンパイル時間 | 365 ms |
| コンパイル使用メモリ | 81,656 KB |
| 実行使用メモリ | 67,320 KB |
| 最終ジャッジ日時 | 2025-04-16 15:23:35 |
| 合計ジャッジ時間 | 3,267 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | RE * 2 |
| other | RE * 27 |
ソースコード
import sys
from collections import deque
def main():
R, C = map(int, sys.stdin.readline().split())
sy, sx = map(int, sys.stdin.readline().split())
gy, gx = map(int, sys.stdin.readline().split())
# Convert to 0-based indices
sy -= 1
sx -= 1
gy -= 1
gx -= 1
grid = [sys.stdin.readline().strip() for _ in range(R)]
# Initialize distance matrix with -1 (unvisited)
dist = [[-1 for _ in range(C)] for _ in range(R)]
dist[sy][sx] = 0
# Directions: up, down, left, right
directions = [(-1, 0), (1, 0), (0, -1), (0, 1)]
q = deque()
q.append((sy, sx))
while q:
y, x = q.popleft()
# Check if current position is the goal
if y == gy and x == gx:
print(dist[y][x])
return
for dy, dx in directions:
ny = y + dy
nx = x + dx
# Check if the new position is within bounds
if 0 <= ny < R and 0 <= nx < C:
# Check if the cell is accessible and not visited
if grid[ny][nx] == '.' and dist[ny][nx] == -1:
dist[ny][nx] = dist[y][x] + 1
q.append((ny, nx))
# The problem states that the goal is reachable, so this line is theoretically unreachable
print(-1)
if __name__ == "__main__":
main()
lam6er