Cod sursa(job #1113013)

Utilizator rares96cheseliRares Cheseli rares96cheseli Data 20 februarie 2014 11:21:55
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");

int N, used[10], st[10];

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

void back(int top)
{
    if (top>N) afisare();
    for (int i=1; i<=N; ++i)
        if (!used[i])
        {
            st[top]=i; used[i]=1;
            back(top+1);
            used[i]=0;
        }
}


int main()
{
    f>>N;
    back(1);
    return 0;
}