Cod sursa(job #1925214)

Utilizator matystroiaStroia Matei matystroia Data 12 martie 2017 17:14:16
Problema Paduri de multimi disjuncte Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.57 kb
#include <fstream>
using namespace std;

ifstream fin("disjoint.in");
ofstream fout("disjoint.out");

const int N=100100;

int n, m, t[N];

int fnd(int i)
{
    if(t[i]!=i)
        t[i]=fnd(t[i]);
    return t[i];
}

void join(int i, int j)
{
    t[fnd(i)]=fnd(j);
}

int main()
{
    fin>>n>>m;
    for(int i=1;i<=n;++i)
        t[i]=i;
    for(int i=0;i<m;++i)
    {
        int p, x, y;
        fin>>p>>x>>y;
        if(p==1)
            join(x, y);
        else if(p==2)
            fout<<((fnd(x)==fnd(y))?"DA":"NU")<<'\n';
    }
    return 0;
}