Submission #1347856

#	Time	Username	Problem	Language	Result	Execution time	Memory
1347856		natchanonm	Easter Eggs (info1cup17_eastereggs)	C++20	Compilation error	0 ms	0 KiB

eastereggs

#include <bits/stdc++.h>
//#include "grader.h"
#define eb emplace_back
using namespace std;
using ll = long long;

vector<int> adj[520];
int tour[520], node[520], id;

void dfs(int u){
    tour[u] = ++ id;
    node[id] = u;
    for(auto &v:adj[u]) if(!tour[v]) dfs(v);
}

bool ask(int m){
    vector<int> v;
    for(int i=1;i<=m;i++) v.eb(node[i]);
    return query(v);
}



int findEgg(int N, vector<pair<int,int>> bridges){
    for(int i=1;i<=N;i++) adj[i].clear();
    for(auto &[u,v]:bridges) adj[u].eb(v), adj[v].eb(u);
    id = 0;
    dfs(1);
    int l=1, r=N;
    while(l<r){
        int m = (l+r)>>1;
        if(ask(m)) r= m;
        else l = m+1;
    }
    return node[l];

}

Compilation message (stderr)

eastereggs.cpp: In function 'bool ask(int)':
eastereggs.cpp:19:12: error: 'query' was not declared in this scope
   19 |     return query(v);
      |            ^~~~~