#include<cstdio> #include<iostream> #include<cstring> #include<string> #include<stack> #include<queue> using namespace std; int nex[4][2]= { {0,1},{1,0},{0,-1},{-1,0} }; typedef struct { int x,y; } Point; int a[10][10],vis[10][10]; int pre[50]; Point l[50]; int print(int t) { if(pre[t]==-1) { printf("(%d, %d)\n",l[t].x,l[t].y); return 1; } else { if(print(pre[t])) { printf("(%d, %d)\n",l[t].x,l[t].y); return 1; } } } void bfs() { int head,tail; int x1,x2,y1,y2; memset(vis,0,sizeof(vis)); l[0].x=0,l[0].y=0; head=0; tail=1; pre[0]=-1; vis[0][0]=1; while(head<tail) { x1=l[head].x; y1=l[head].y; for(int i=0; i<4; i++) { x2=x1+nex[i][0]; y2=y1+nex[i][1]; if(x2>=0&&x2<5&&y2>=0&&y2<5&&!a[x2][y2]&&!vis[x2][y2]) { pre[tail]=head; l[tail].x=x2,l[tail].y=y2; if(x2==4&&y2==4) { print(tail); return ; } tail++; vis[x2][y2]=1; } } head++; } } int main() { for(int i=0; i<5; i++) for(int j=0; j<5; j++) scanf("%d",&a[i][j]); bfs(); return 0; }
时间: 2024-10-31 14:02:38