#include "game.h"
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
typedef long long ll;
const int N = 1503;
int n;
int p[N];
int q[N][N];
int fi(int x)
{
if (x == p[x])
return x;
return p[x] = fi(p[x]);
}
void initialize(int n)
{
::n = n;
for (int i = 1; i <= n; ++i)
p[i] = i;
for (int x = 1; x <= n; ++x)
{
for (int y = 1; y <= n; ++y)
{
if (x == y)
continue;
q[x][y] = 1;
}
}
}
int hasEdge(int x, int y)
{
++x;
++y;
x = fi(x);
y = fi(y);
if (x == y)
return 0;
if (q[x][y] > 1)
return 0;
--q[x][y];
--q[y][x];
p[x] = y;
for (int i = 1; i <= n; ++i)
q[y][i] += q[x][i];
return 1;
}
