Submission #1173182

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1173182	2025-03-25 00:44:16	nguyenkhangninh99	Easter Eggs (info1cup17_eastereggs)	C++17	Compilation error	0 ms	0 KiB

eastereggs

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#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 5;
int tin[maxn], f[maxn], timeDfs;
vector<int> g[maxn];
void dfs(int u, int pre){
    tin[u] = ++timeDfs;
    f[timeDfs] = u;
    for(int v: g[u]){
        if(v == pre) dfs(v, u);
    }
}
bool ok(int mid){
    vector<int> v;
    for(int i = 1; i <= mid; i++) v.push_back(f[i]);
    return (query(v) == 1);
}
int findEgg(int N, vector <pair<int, int>> bridges){
    int n = N;
    for(int i = 0; i < n - 1; i++){
        int u = bridges[i].first, v = bridges[i].second;
 
 
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Compilation message (stderr)

eastereggs.cpp: In function 'bool ok(int)':
eastereggs.cpp:23:13: error: 'query' was not declared in this scope
   23 |     return (query(v) == 1);
      |             ^~~~~
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:45:12: error: 'query' was not declared in this scope
   45 |         if(query(v) == 1){
      |            ^~~~~