Cod sursa(job #1012394)

Utilizator SagunistuStrimbu Alexandru Sagunistu Data 18 octombrie 2013 21:38:48
Problema Combinari Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.67 kb
#include <iostream>
#include <fstream>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int a[20],n,m;

void afisare(int k)
{
    int i;
    for(i=1;i<=k;i++)
        cout<<a[i]<<" ";
    cout<<"\n";
}
bool valid(int k)
{
    int i;
    for(i=1;i<k;i++)
        if(a[i]==a[k])
            return false;
    return true;
}
void bak(int k)
{
    int i;
    for(i=a[k-1];i<=n;i++)
    {
        a[k]=i;
        if(valid(k))
        {
            if(k==m)
                afisare(k);
            else
                bak(k+1);
        }
    }
}
int main()
{
    a[0]=1;
    fin>>n>>m;
    bak(1);
    return 0;
}