Cod sursa(job #1673971)

Utilizator dex4Darjan Catalin dex4 Data 4 aprilie 2016 11:49:49
Problema Paduri de multimi disjuncte Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.76 kb
#include <iostream>
#include <fstream>
#define nmax 100005
using namespace std;

int n, m, padre[nmax], R[nmax];

int find_padre(int x){
    int y = x;
    while(padre[x] != x)
        x = padre[x];
    padre[y] = x; //euristiq 1
    return padre[y];
}

void unite(int x, int y){
    x = find_padre(x);
    y = find_padre(y);
    padre[x] = y;
}

void read(){
    int op, x, y;
    ifstream f("disjoint.in");
    ofstream g("disjoint.out");
    f >> n >> m;
    for(int i=1; i<=n; i++)
        padre[i] = i;
    for(int i=1; i<=m; i++){
        f >> op >> x >> y;
        if(op == 1)
            unite(x, y);
        else
            g << (find_padre(x) == find_padre(y) ? "DA\n" : "NU\n");
    }
}

int main()
{
    read();
    return 0;
}