Cod sursa(job #877968)

Utilizator vgabi94Vaduva Gabriel vgabi94 Data 13 februarie 2013 16:46:23
Problema Combinari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.87 kb
#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int N, M, k, st[19];
bool as, ev;
void init()
{
    if (k == 1) st[k] = 0;
    else st[k] = st[k-1];
}
bool succesor()
{
    if (st[k] < N-M+k)
    {
        st[k] = st[k] + 1;
        return true;
    }
    return false;
}
bool valid() { return true; }
bool solutie() { return k == M; }
void tipar()
{
    for (int i = 1; i <= k; i++)
        out << st[i] << ' ';
    out << '\n';
}
void bt()
{
    k = 1; init();
    while (k > 0)
    {
        do
        {
            as = succesor();
            if (as) ev = valid();
        } while (as && !ev);
        if (as)
        {
            if (solutie()) tipar();
            else { k++; init(); }
        }
        else k--;
    }
}

int main()
{
    in >> N >> M;
    bt();
    return 0;
}