#include <bits/stdc++.h>
#include "game.h"
using namespace std;
int n;
vector<int> e;
vector<vector<int>> val;
int find(int v){
if(e[v]<0)return v;
else{
e[v]=find(e[v]);
return e[v];
}
}
bool same(int x, int y){
return (find(x)==find(y));
}
int sz(int v){
return -e[find(v)];
}
void connect(int x, int y){
x=find(x);
y=find(y);
if(x==y)return;
if(e[x]>e[y])swap(x,y);
for(int i=0;i<n;i++){
if(find(i)==i){
int sus=val[y][i];
val[y][i]-=sus;
val[i][y]-=sus;
val[x][i]+=sus;
val[i][x]+=sus;
}
}
e[x]+=e[y];
e[y]=x;
}
void initialize(int s) {
n=s;
e.assign(n,-1);
val.assign(n,vector<int>(n,0));
}
int hasEdge(int u, int v) {
u=find(u);v=find(v);
if(u==v)return 1;
// cout << v << ' ' << u << ' ' << sz(v)*sz(u) << ' ' << val[v][u] << ' ' << val[u][v] << '\n';
if(sz(v)*sz(u)==val[v][u]+1){
connect(v,u);
return 1;
}else{
val[v][u]++;
val[u][v]++;
return 0;
}
}
