Cod sursa(job #1913733)
Utilizator | Stoichitescu Maria mariast | Data | 8 martie 2017 13:50:32 |
---|---|---|---|
Problema | Combinari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.52 kb |
#include<fstream>
using namespace std;
ifstream f ("combinari.in");
ofstream g ("combinari.out");
int st[19],viz[19],i,n,x;
void afisare(){
for(int nr=1;nr<=x;nr++)
g<<st[nr]<<" ";
g<<'\n';
}
void backt(int k){
for(int i=st[k-1]+1;i<=n;i++){
if(viz[i]==0){
st[k]=i;
viz[i]=1;
if(k==x){
afisare();
}
else backt(k+1);
viz[i]=0;
}
}
}
int main()
{
f>>n>>x;
backt(1);
}