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Cod sursa(job #587318)
#include<cstdio>
#include<vector>
#include<algorithm>
using namespace std;
int n,i;
int main(){
freopen("parmutari.in","r",stdin);
freopen("permutari.out","w",stdout);
scanf("%d",&n);
vector<int>v(n);
for(i=0;i<n;++i){
v[i]=i+1;
printf("%d ",i+1);
}
while(next_permutation(v.begin(),v.end())){
printf("\n");
for(i=0;i<n;++i){
printf("%d ",v[i]);
}
}
return 0;
}