Cod sursa(job #1980936)

Utilizator moise_alexandruMoise Alexandru moise_alexandru Data 14 mai 2017 13:38:41
Problema Dusman Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.04 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("dusman.in");
ofstream out("dusman.out");
const int maxn = 1005;
bool M[maxn][maxn];
bool pus[maxn];
int sol[maxn];
int n, k;
int cnt = 0;
void afis()
{
    for(int i = 1; i <= n; i++)
        out << sol[i] << " ";
    out << "\n";
}

void _back_(int poz)
{
    if(cnt >= k)
        return;
    if(poz == n + 1)
    {
        /*
        for(int i = 1; i <= n; i++)
            cerr << sol[i] << " ";
        cerr << "\n";
        */
        cnt++;
        if(cnt == k)
            afis();
        return;
    }
    for(int i = 1; i <= n; i++)
    {
        if(!pus[i] && M[sol[poz - 1]][i] == 0)
        {
            sol[poz] = i;
            pus[i] = 1;
            _back_(poz + 1);
            pus[i] = 0;
        }
    }
}
int main()
{
    int m;
    in >> n >> k >> m;
    for(int i = 1; i <= m; i++)
    {
        int x, y;
        in >> x >> y;
        M[x][y] = 1;
        M[y][x] = 1;
    }
    _back_(1);
    return 0;
}