#include "game.h"
#include "bits/stdc++.h"
using namespace std;
const int inf = 1e9;
int n, k;
vector<vector<int>> g;
vector<int> vis;
bool found;
void init(int _n, int _k) {
n = _n, k = _k;
g.assign(n, vector<int>());
found = false;
for (int i = 1; i < k; i++) g[i - 1].emplace_back(i);
}
int dfs(int u) {
vis[u] = 1;
for (int v: g[u]) {
if (v < k and vis[v] == 1) return 1;
if (!vis[v]) {
if (dfs(v)) return 1;
}
}
vis[u] = 2;
return 0;
}
int add_teleporter(int u, int v) {
assert(found == false);
found |= u >= v;
return found;
g[u].emplace_back(v);
vis = vector(n, 0);
return dfs(0);
}
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