Cod sursa(job #2175098)

Utilizator waren4Marius Radu waren4 Data 16 martie 2018 15:16:38
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.53 kb
#include <iostream>
#include <fstream>
#include <algorithm>

using namespace std;

ifstream f("permutari.in"); ofstream g("permutari.out");
int n,nr,a[10];

int main() {
    f>>n;
    int i,j;
    nr = 1;
    for( i = 2; i <= n; ++i) nr = nr*i;
    for(i = 1; i <= n; ++i) {
        a[i] = i;
        g<<i<<' ';
    }
    g<<'\n';
    for(i = 1; i < nr; ++i) {
        next_permutation(a+1, a+n+1);
        for(int j = 1; j <= n; ++j) {
            g<<a[j]<<' ';
        }
        g<<'\n';
    }
    return 0;
}