Cod sursa(job #798411)

Utilizator costyrazvyTudor Costin Razvan costyrazvy Data 16 octombrie 2012 16:36:43
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.57 kb
#include <fstream>

using namespace std;
bool pus[10000];
int a[10000],sol[10000],n,i;
ifstream f("permutari.in");
ofstream g("permutari.out");
void afis ()
{
    int i;
    for (i=1;i<=n;i++) g<<a[sol[i]]<<" ";
    g<<'\n';
}
void back(int k)
{
    int i;
    if (k>n) afis();
    else for (i=1;i<=n;i++)
      if (!pus[i])
      {
          sol[k]=i;
          pus[i]=true;
          back(k+1);
          pus[i]=false;
      }
}
int main()
{
    f>>n;
    for (i=1;i<=n;i++) a[i]=i;
    back(1);
    f.close();
    g.close();
    return 0;
}