結果
| 問題 |
No.3063 Circle Balancing
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 12:53:42 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 1,438 bytes |
| コンパイル時間 | 269 ms |
| コンパイル使用メモリ | 82,352 KB |
| 実行使用メモリ | 67,780 KB |
| 最終ジャッジ日時 | 2025-06-12 12:56:18 |
| 合計ジャッジ時間 | 3,595 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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
# Read the maze
maze = [sys.stdin.readline().strip() for _ in range(R)]
# Initialize distance matrix with -1 (unvisited)
distance = [[-1 for _ in range(C)] for _ in range(R)]
distance[sy][sx] = 0 # Starting point
# Directions: up, down, left, right
dy = [-1, 1, 0, 0]
dx = [0, 0, -1, 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(distance[y][x])
return
# Explore all four directions
for i in range(4):
ny = y + dy[i]
nx = x + dx[i]
# Check if the next position is within bounds, is a path, and unvisited
if 0 <= ny < R and 0 <= nx < C:
if maze[ny][nx] == '.' and distance[ny][nx] == -1:
distance[ny][nx] = distance[y][x] + 1
q.append((ny, nx))
# If somehow the loop exits without returning (though problem states a path exists)
print(-1)
if __name__ == "__main__":
main()
gew1fw