Cod sursa(job #2074796)

Utilizator sebi_andrei2008Lazar Eusebiu sebi_andrei2008 Data 25 noiembrie 2017 00:06:18
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.68 kb
#include <iostream>
#include <fstream>
#define NMAX 9
using namespace std;

ifstream fin("permutari.in");
ofstream fout("permutari.out");

int sol[NMAX], n, folosit[NMAX];

void printSol() {
    for (int i = 0; i < n; i++)
        fout<<(int) sol[i]<<' ';
    fout<<"\n";
}

void back(unsigned char pos) {
    if (pos == n) {
        printSol();
        return;
    }

    for (int i = 1; i <= n; i++) {
        if (!folosit[i]) {
            folosit[i] = 1;
            sol[pos] = i;
            back(pos + 1);
            folosit[i] = 0;
        }
    }
}

int main()
{
    fin >> n;
    back(0);
    fin.close();
    fout.close();
    return 0;
}