perm.cc

/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */

#include <iostream>
#include <algorithm>

using namespace std;

int main () {
    int ary[] = {1, 2, 3};

    sort(ary, ary + 3);
    do {
        cout << ary[0] << ' ' << ary[1] << ' ' << ary[2] << endl;
    } while (next_permutation(ary, ary + 3));

    return 0;
}