#include "game.h"
#include <bits/stdc++.h>
using namespace std;
//#include "grader.cpp"
int n;
int par[1502];
int cur2[1502][1502];
void initialize (int N) {
n = N;
for (int i = 0; i < n; i++) {
par[i] = i;
}
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
cur2[i][j] = cur2[j][i] = 1;
}
}
}
int find (int x) {
return par[x] == x ? x : par[x] = find(par[x]);
}
int hasEdge (int u, int v) {
u = find(u); v = find(v);
if (u == v) return 0;
if (cur2[u][v] != 1) {
cur2[u][v]--; cur2[v][u]--;
return 0;
}
for (int i = 0; i < n; i++) {
if (i != u && i != v) {
cur2[v][i] += cur2[u][i];
cur2[i][v] += cur2[u][i];
}
}
par[u] = v;
return 1;
}
