Cod sursa(job #971303)

Utilizator gbi250Gabriela Moldovan gbi250 Data 8 iulie 2013 21:38:19
Problema Dusman Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.84 kb
#include <cstdio>
using namespace std;
int n, k, m, i, x, y, st[1001], sol, a[1001][1001];
bool uz[1001];
void tip()
{
    for(i=1;i<=n;++i)
        printf("%d ", st[i]);
    printf("\n");
}
void back(int niv)
{
    if(niv==n+1&&sol<k)
        if(sol==k-1)
        {
            tip();
            sol++;
        }
        else sol++;
    else
        if(sol<k)
            for(int i=1;i<=n;++i)
                if(!uz[i]&&!a[i][st[niv-1]])
                {
                    st[niv]=i;
                    uz[i]=1;
                    back(niv+1);
                    uz[i]=0;
                }
}

int main()
{
    freopen("dusman.in", "r", stdin);
    freopen("dusman.out", "w", stdout);
    scanf("%d %d %d", &n, &k, &m);
    for(i=1;i<=m;++i)
    {
        scanf("%d %d", &x, &y);
        a[x][y]=a[y][x]=1;
    }
    back(1);
    return 0;
}