摘要：
#include<iostream>#include<cstdio>#include<cstring>using namespace std;int map[21][21];int a[21][21];bool used[21][21];int n,m;bool dfs(){ int i,j; int x,y,r; int flag=0; for(i=1;i<=n;i++) { if(flag) break; for(j=1;j<=n;j++) if(!used[i][j]) { ... 阅读全文
