This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
// #include "grader.cpp"
using namespace std;
#define cin(vec) for(auto& i : vec) cin >> i
#define cout(vec) for(auto& i : vec) cout << i << " "; cout << "\n";
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define loop(i,a,b) for (int i = a; i < b; i++)
#define F first
#define S second
#define pb(n) push_back(n)
#define pf(n) push_front(n)
#define dci(d) fixed<<setprecision(d)
#define sp ' '
#define el '\n'
#define all(v) v.begin(),v.end()
int const N=30005;
int n,k,vis[N],vid;
vector<int>g[N];
void dfs(int u,int dpth){
if(dpth)
vis[u]=vid;
for(auto u:g[u]){
if(vis[u]!=vid){
vis[u]=vid;
dfs(u,dpth+1);
}
}
}
void init(int _n, int _k) {
n=_n;k=_k;
for(int i=0;i<k-1;i++)g[i].pb(i+1);
}
int add_teleporter(int u, int v) {
if(u<k&&v<k){
if(v<=u)return 1;
}
else if(u==v){
}
else{
g[u].pb(v);
int c=0;
for(int i=0;i<k;i++){
vid++;
dfs(i,0);
if(vis[i]==vid)return 1;
// cout<<i<<' '<<vis[i]<<' '<<vid<<el;
}
// cout<<el;
}
return 0;
}
Compilation message (stderr)
game.cpp: In function 'int add_teleporter(int, int)':
game.cpp:41:9: warning: unused variable 'c' [-Wunused-variable]
41 | int c=0;
| ^
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