USACO Gold 2018 January - Mootube

Author: Óscar Garries

Problem Statement

Official Analysis



#include <bits/stdc++.h>
using namespace std;
struct DSU {
vector<int> e;
void init (int n) { e = vector<int>(n, -1); }
int get (int x) { return e[x] < 0 ? x : e[x] = get(e[x]); };
bool sameSet (int x, int y) { return get(x) == get(y); };
int size (int x) { return -e[get(x)]; }

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