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Cod sursa(job #127963)
#include<stdio.h>
int n,k,m,i,x,y,s[1001],viz[2000];
char a[1001][1001];
void back()
{i=1;
while(i>0){
do{
s[i]++;
}while(s[i]<=n && (viz[s[i]] || a[s[i-1]][s[i]]));
viz[s[i]]=1;
if(s[i]<=n)
if(i==n)
{k--;
if(!k) return;
viz[s[i]]=0;}
else i++;
else {s[i]=0;i--;viz[s[i]]=0;}
}
}
int main()
{freopen("dusman.in","r",stdin);
freopen("dusman.out","w",stdout);
scanf("%d %d %d",&n,&k,&m);
for(i=1;i<=m;i++){scanf("%d %d",&x,&y);a[x][y]=a[y][x]=1;}
back();
for(i=1;i<=n;i++) printf("%d ",s[i]);
fclose(stdout);
return 0;}