Cod sursa(job #1010064)

Utilizator cristigrigoreGrigore Cristan Andrei cristigrigore Data 14 octombrie 2013 11:18:18
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.53 kb
#include <fstream>

using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,i,a[10],k,sol[10];
bool ok[10];
void afis()
{
    int i;
    for(i=1; i<=n; i++)
    g<<a[sol[i]]<<' ';
}
void back(int k)
{
    int i;
    if(k>n) {afis();g<<'\n';}
    else
    for(i=1; i<=n; i++)
    if(!ok[i])
    {
        sol[k]=i;
        ok[i]=true;
        back(k+1);
        ok[i]=false;
    }
}
int main()
{
    f>>n;
    for(i=1; i<=n; i++)
    a[i]=i;
    k=1;
    back(k);
    return 0;
}