Cod sursa(job #248246)

Utilizator PavelRazvanPavel Razvan PavelRazvan Data 25 ianuarie 2009 11:57:53
Problema Combinari Scor 40
Compilator cpp Status done
Runda Arhiva educationala Marime 0.62 kb
#include<stdio.h>
int n,a[20],x;
int check (int k,int y)
{
    if(k==1 && y==0)
    return 0;
    if(a[k-1]>=y)
    return 0;
    if(y>x)
    return 0;
    return 1;
}    
void back (int k)
{
    int i;
    if(k==n+1)
    {
        for(i=1;i<=n;++i)
        printf("%d ",a[i]);
        printf("\n");
    }
    else
    {
        for(i=0;i<=9;++i)
        if(check(k,i)==1)
        {
            a[k]=i;
            back(k+1);
        }
    }
}
int main ()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&x,&n);
    back(1);
    return 0;
}