Cod sursa(job #340013)

Utilizator mihai_floreaFlorea Mihai Alexandru mihai_florea Data 12 august 2009 16:22:47
Problema Dusman Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <fstream>
#include <bitset>
using namespace std;
int N,K,M,x[1024],cnt;
bitset<1024> U,A[1024];
ifstream f("dusman.in");
ofstream g("dusman.out");
void back(int k)
{
     int i,j=x[k-1];
     if (k==N+1)
     {
        ++cnt;
        if (cnt==K)
        {
           for (i=1;i<=N;++i) g<<x[i]<<' ';
           exit(0);
        }
        return;
     }
     for (i=1;i<=N;++i)
       if (!U[i] && !A[j][i])
       {
          x[k]=i;U[i]=1;
          back(k+1);
          U[i]=false;
       }
}
int main()
{
    int i,j;
    f>>N>>K>>M;
    while (M--)
    {
       f>>i>>j;
       A[i][j]=A[j][i]=1;
    }
    back(1);
    return 0;
}