#include "game.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 1505;
int deg[N], used[N], cnt, n;
set <int> g[N];
void initialize(int N) {
n = N;
for (int i = 1; i <= n; i++) {
for (int j = i + 1; j <= n; j++) {
g[i].insert(j);
g[j].insert(i);
}
}
}
void dfs (int v) {
used[v] = 1;
cnt++;
for (auto to : g[v]) {
if (used[to]) continue;
dfs(to);
}
}
int hasEdge(int u, int v) {
u++;
v++;
assert(g[u].find(v) != g[u].end());
assert(g[v].find(u) != g[v].end());
g[u].erase(v);
g[v].erase(u);
memset(used, 0, sizeof(used) );
cnt = 0;
dfs(1);
if (cnt < n) {
g[v].insert(u);
g[u].insert(v);
return 1;
}
return 0;
}
