Class node

CPP/graph_tree/Kruskal-Algo.cpp:3–12

#include<bits/stdc++.h>
using namespace std;
struct node {
    int u;
    int v;
    int wt; 
    node(int first, int second, int weight) {
        u = first;
        v = second;
        wt = weight;
    }
};

bool comp(node a, node b) {
    return a.wt < b.wt;