Cod sursa(job #1660322)

Utilizator tziplea_stefanTiplea Stefan tziplea_stefan Data 22 martie 2016 23:12:04
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.64 kb
#include <fstream>
#define VAL 15

using namespace std;

ifstream fin("permutari.in");
ofstream fout("permutari.out");

int N, i, v[VAL];
bool ok[VAL];

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

int back(int K)
{
    int i;
    for (i=1; i<=N; i++)
    {
        v[K]=i;
        if (ok[i]==false)
        {
            ok[i]=true;
            if (K==N)
              afisare();
            else
              back(K+1);
            ok[i]=false;
        }
    }
}

int main()
{
    fin >> N;
    back(1);
    fin.close();
    fout.close();
    return 0;
}