Cod sursa(job #1249429)

Utilizator deea101Andreea deea101 Data 26 octombrie 2014 23:15:24
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.55 kb
#include <fstream>
#define NMAX 8
using namespace std;

ifstream f("permutari.in");
ofstream g("permutari.out");

int v[NMAX+1],n,used[NMAX+1];

void afisare()
{
    int i;
    for(i=1;i<=n;i++)
        g<<v[i]<<' ';

    g<<'\n';
}
void back(int k)
{
    int i;

    if(k==n+1)
    {
        afisare();
        return;
    }

    for(i=1;i<=n;i++)
        if(!used[i])
        {
            used[i]=1;
            v[k]=i;
            back(k+1);
            used[i]=0;
        }
}
int main()
{
    f>>n;
    back(1);
}