Cod sursa(job #1292357)

Utilizator gapdanPopescu George gapdan Data 14 decembrie 2014 10:58:47
Problema Dusman Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.82 kb
#include<cstdio>
#include<vector>
#define NMAX 1003
using namespace std;
int g[NMAX][NMAX],viz[NMAX],st[NMAX];
int n,k,m,i,x,y,nr;
void back(int l)
{
    int i;
    if (l>n)
    {
        ++nr;
        if (nr==k)
            for (i=1;i<=n;++i) printf("%d ",st[i]);
    }
    else
    {
        for (i=1;i<=n;++i)
        {
            if (viz[i]==0 && g[st[l-1]][i]==0)
            {
                viz[i]=1;
                st[l]=i;
                back(l+1);
                viz[i]=0;
                if (nr==k) return;
            }
        }
    }
}
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);
        g[x][y]=g[y][x]=1;
    }
    back(1);
    return 0;
}