Submission #985299

#	Time	Username	Problem	Language	Result	Execution time	Memory
985299		ph0enlx	Game (APIO22_game)	C++17	Compilation error	0 ms	0 KiB

game

#include<bits/stdc++.h>
using namespace std;
const int N = 3e5+10;
vector<set<int>> g(N);
int ng, kg;

void dfs(int ver, int par, bool &exist, vector<bool> &vis, int ret)
{
    vis[ver] = true;
    for(int child : g[ver])
    {
        if(vis[child])
        {
            if(child==ret)
            {
                exist = true;
                return;
            }
            continue;
        }
        dfs(child, ver, exist, vis, ret);
    }
}

void init(int n, int k)
{
    ng = n, kg = k;
    for(int i=0; i<k-1; i++)
    {
        g[i].insert(i+1);
    }
}

int add_teleporter(int u, int v)
{
    if(u==v && u<k) return 1;
    g[u].insert(v);
    vector<bool> vis(ng);
    bool exist=false;
    for(int i=0; i<kg; i++)
    {
        if(vis[i]) continue;
        dfs(i, i, exist, vis, i);
        if(exist) return 1;
    }

    return 0;
}

Compilation message (stderr)

game.cpp: In function 'int add_teleporter(int, int)':
game.cpp:36:18: error: 'k' was not declared in this scope
   36 |     if(u==v && u<k) return 1;
      |                  ^