Cod sursa(job #973537)

Utilizator alexsuciuAlex Suciu alexsuciu Data 14 iulie 2013 18:06:14
Problema Loto Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.69 kb
#include<fstream>
#include<cstdlib>
#include<iostream>
using namespace std;
int n,i,j,k,a[101],sol[101],ok;
long S,s;
ofstream g("loto.out");

void backi(int k)
{
    if(S==s)
    {
        for(i=1;i<=k-1;i++)
            for(j=1;j<=sol[i];j++)
            g<<a[i]<<" ";
            ok=1;
            exit(EXIT_SUCCESS);
    }
    else
    {
        sol[k]=-1;
        while(sol[k]*a[k]+s<S && k<n+1)
        {
            sol[k]++;
            s=sol[k]*a[k]+s;
            backi(k+1);
            s=s-sol[k]*a[k];
        }
    }
}

int main()
{
    ifstream f("loto.in");
    f>>n>>S;
    for(i=1;i<=n;i++)
        f>>a[i];
    backi(1);
    if(!ok) g<<-1;

}