Cod sursa(job #1889364)

Utilizator Matei_IgnutaMatei Ignuta Matei_Ignuta Data 22 februarie 2017 18:12:20
Problema Parcurgere DFS - componente conexe Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.16 kb
#include <stdio.h>
#include <vector>
using namespace std;
vector <int> a[20010];
bool marcat[20010];
int nr;
int d[10010];
void dfs(int nod)
{
    marcat[nod]=true;
    for(int i=0; i<a[nod].size(); i++)
    {
        if(!marcat[a[nod][i]])
        {
            dfs(a[nod][i]);
            nr++;
        }
    }
}
int n, m;
int x, y;
int main()
{
    freopen("nunta.in", "r", stdin);
    freopen("nunta.out", "w", stdout);
    scanf("%d%d", &n, &m);
    for(int i=1; i<=m; i++)
    {
        scanf("%d%d", &x, &y);
        a[x].push_back(y);
        a[y].push_back(x);
    }
    int nre=0;
    int smax=n/2+1;
    d[0]=1;
    for(int i=1; i<=n; i++)
    {
        if(marcat[i]==0)
        {
            nr=1;
            dfs(i);
            if(nr>1)
            {
                nre++;
                for(int s=smax; s>=0; s--)
                {
                    if(d[s]>0 and s+nr<smax)
                        d[s+nr]+=d[s];
                    if(d[s]>0 and s+nr>=smax)
                        d[smax]+=d[s];
                }
            }
        }
    }
    printf("%d\n", nre);
    printf("%d", d[smax]);
    return 0;
}