Cod sursa(job #650463)

Utilizator RaduDoStochitoiu Radu RaduDo Data 18 decembrie 2011 10:45:55
Problema Combinari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.66 kb
#include<iostream>
#include<cstdio>
using namespace std;
int n,p,st[10000];
void tipar(int k)
{
    int i;
    for(i=1;i<=k;i++)
    printf("%d ",st[i]);
    printf("\n");
}
int valid(int k)
{
    int ev=1;
    for(int i=1;i<k;i++)
        if(st[k]<=st[i])
            ev=0;
    return ev;
}
void back(int k)
{
    int x;
    for(x=st[k-1]+1;x<=n;x++)
    {
        st[k]=x;
        if(valid(k))
            if(k==p) tipar(k);
                else
                if(k<n) back(k+1);
    }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&n,&p);
    back(1);
    return 0;
}