Cod sursa(job #838429)

Utilizator gaby1995Calin Gabriel Iulian gaby1995 Data 19 decembrie 2012 17:47:25
Problema Generare de permutari Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.55 kb
#include<iostream>
#include<fstream>
#define nmax 9
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n , k , x[nmax] , uz[nmax] ;
void retsol ()
{
    for (int i=1;i<=n;i++)
     fout<<" "<<x[i];
    fout<<endl;
}
void back (int k)
{
    if (k-1==n)
     retsol();
    else
     for (int i=1;i<=n;i++)
          if (!uz[i])
      {
          x[k]=i;
          uz[i]=1;
          back(k+1);
          uz[i]=0;
      }
}
int main ()
{
    fin>>n;
    back(1);
    fin.close();
    fout.close();
}