Cod sursa(job #1802120)

Utilizator paulstepanovStepanov Paul paulstepanov Data 9 noiembrie 2016 21:20:45
Problema Combinari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.66 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");

int N,K,x[25];

int valid(int k)
{
    for(int i=1;i<=k;++i)
        if((k>1) && (x[k]<=x[k-1]))
        return 0;
    return 1;
}

int solutie(int k)
{
    return k==K;
}

void afisare(int k)
{
    for(int i=1;i<=k;++i)
        fout<<x[i]<<" ";
    fout<<"\n";
}

void Backtrack(int k)
{
    for(int i=1;i<=N;++i)
    {
        x[k]=i;
        if(valid(k))
            if(solutie(k))
            afisare(k);
        else Backtrack(k+1);
    }
}

int main()
{
    fin>>N>>K;
    Backtrack(1);
    return 0;
}