i不要定全局变量
by 我要屠题 @ 2018-07-14 11:17:58
```cpp
#include<iostream>
#include<cstdio>
#include<cstdlib>
using namespace std;
int n,vis[100],used[100];
void dfs(int k){
int i;
if(k==n){
int i;
for(i=1;i<=n;i++){
printf("%5d",used[i]);
}
cout<<endl;
return;
}
for(i=1;i<=n;i++){
if(!vis[i]){
vis[i]=1;
used[k+1]=i;
dfs(k+1);
vis[i]=0;
}
}
}
int main(){
cin>>n;
dfs(0);
return 0;
}
```
程序走一波
by JAMERES86 @ 2018-07-14 11:38:09
@[我要屠题](/space/show?uid=84012) 谢谢
by RKcer21 @ 2018-07-14 11:48:33
@[JAMERES86](/space/show?uid=95875) 谢谢
by RKcer21 @ 2018-07-14 11:48:38