Cod sursa(job #1144967)

Utilizator radarobertRada Robert Gabriel radarobert Data 17 martie 2014 19:37:18
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.67 kb
#include <fstream>

using namespace std;

int v[10], n;
bool w[10];
ifstream in("permutari.in");
ofstream out("permutari.out");

void gen(int k)
{
    int i, j;
    if (k < n)
    {
        for (i = 1; i <= n; ++i)
            if (!w[i])
            {
                w[i] = 1;
                v[k] = i;
                gen(k+1);
                w[i] = 0;
            }
    }
    else
        for (i = 1; i <= n; ++i)
            if (!w[i])
            {
                for (j = 1; j < n; ++j)

                    out << v[j] << ' ';
                out << i << '\n';
            }
}

int main()
{
    in >> n;
    gen(1);

    return 0;
}