314 - Robot(用Dijkstra怎么还ac不了)
#include #include #include #include using namespace std;const int N = 55;const int M = 4;const int dx[] = {-1, 0, 1, 0};const int dy[] = {0, 1, 0, -1};const int INF = 0x3f3f3f3f;struct He
