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Cod sursa(job #547807)
#include<cstdio>
using namespace std;
int n,m,k,y,k1,k2,nr[6],use[1001],a[1001][1001];
void afiseaza(int nr[]){
int i=1;
for(i=1;i<=n;++i){
printf("%d ",nr[i]);
}
}
void back(int c){
int i;
if(c==n+1){
++y;
if(y==k){
afiseaza(nr);
}
return;
}
else{
for(i=1;i<=n;++i){
if(use[i]==0){
use[i]=1;
nr[c]=i;
if(a[nr[c]][nr[c-1]]==0){
back(c+1);
}
use[i]=0;
}
}
}
}
int main(){
freopen("dusman.in","r",stdin);
freopen("dusman.out","w",stdout);
scanf("%d%d%d",&n,&k,&m);
int i;
for( i=1;i<=m;++i){
scanf("%d%d",&k1,&k2);
a[k1][k2]=1;
a[k2][k1]=1;
}
back(1);
return 0;
}