```cpp if (!vis[q.x][q.y] && a[q.x][q.y] == 1) ``` ??? 你这样不是访问不到终点了吗 ~~23333~~ ```cpp if (!vis[q.x][q.y] && (a[q.x][q.y] == 1||a[q.x][q.y]==4)) ``` by JustinRochester @ 2018-10-19 08:00:51