#include "game.h"
#include <bits/stdc++.h>
#define int long long
#define rep(i,n) for(int i = 0; i < n; i++)
#define all(a) a.begin(), a.end()
using namespace std;
int n;
vector<vector<bool>>forb;
void initialize(signed N) {
n=N;
forb.assign(n,vector<bool>(n,false));
}
vector<bool>vis;
void dfs(int v, vector<vector<int>>&E)
{
vis[v]=true;
for(int w : E[v]) if(!vis[w]) dfs(w, E);
}
bool con()
{
vector<vector<int>>E(n);
rep(i,n) rep(j,n) if(i!=j&&!forb[i][j]) E[i].push_back(j);
vis.assign(n,false);
dfs(0,E);
return count(all(vis),true)==n;
}
signed hasEdge(signed u, signed v) {
forb[u][v]=forb[v][u]=true;
if(con()) return 0;
else {
forb[u][v]=forb[v][u]=false;
return 1;
}
}
