#include "game.h"
#include<bits/stdc++.h>
using namespace std;
struct DSU {
vector<int> e;
DSU(int N) { e = vector<int>(N, -1); }
// get representive component (uses path compression)
int get(int x) { return e[x] < 0 ? x : e[x] = get(e[x]); }
bool same_set(int a, int b) { return get(a) == get(b); }
int size(int x) { return -e[get(x)]; }
bool unite(int x, int y) { // union by size
x = get(x), y = get(y);
if (x == y) return false;
if (e[x] > e[y]) swap(x, y);
e[x] += e[y]; e[y] = x;
return true;
}
};
vector<vector<int> > counter;
DSU dsu(81);
void initialize(int n) {
counter.resize(1 + n, vector<int>(1 + n, 0));
}
int hasEdge(int u, int v) {
u = dsu.get(u);
v = dsu.get(v);
counter[u][v]++;
counter[v][u]++;
if(counter[u][v] == dsu.size(u) * dsu.size(v)){
dsu.unite(u, v);
return 1;
}
return 0;
}
