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Cod sursa(job #415652)
#include<fstream.h>
int v[20],k1,n;
ifstream f("combinari.in");
ofstream g("combinari.out");
int afisare(){
int i;
for(i=1;i<=k1;i++) g<<v[i]<<" ";
g<<"\n";
}
void back(int k){
int i;
if(k==k1) afisare();
else{
for(i=v[k]+1;i<=n;i++){
v[k+1]=i;
back(k+1);
}
}
}
int main(){
f>>n>>k1;
back(0);
g.close();
return 0;
}