#include <bits/stdc++.h>
//#include "grader.h"
using namespace std;
using ll = long long;
//#define int long long
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (b); i >= (a); i --)
#define REP(i, a) for (int i = 0; i < (a); ++i)
#define REPD(i, a) for (int i = (a) - 1; i >= 0; --i)
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
/*
Phu Trong from Nguyen Tat Thanh High School for gifted student
*/
template <class X, class Y>
bool minimize(X &x, const Y &y){
X eps = 1e-9;
if (x > y + eps) {x = y; return 1;}
return 0;
}
template <class X, class Y>
bool maximize(X &x, const Y &y){
X eps = 1e-9;
if (x + eps < y) {x = y; return 1;}
return 0;
}
#define MAX 555
vector<int> G[MAX];
int minDist[MAX];
int rev[MAX];
int findEgg(int N, vector<pair<int, int>> bridges){
for (pair<int, int>&x : bridges){
int u = x.first, v = x.second;
G[u].emplace_back(v);
G[v].emplace_back(u);
}
queue<int> q;
q.emplace(1);
minDist[1] = 1;
int cnt = 1;
while(q.size()){
int u = q.front(); q.pop();
for (int &v : G[u]){
if (!minDist[v]){
q.emplace(v);
minDist[v] = ++cnt;
rev[minDist[v]] = v;
}
}
}
int l = 1, r = N;
auto check = [&](int x) -> bool{
vector<int> node;
for (int i = 1; i <= N; ++i) if(minDist[i] <= x){
node.emplace_back(x);
}
return query(node);
};
int ans = 0;
while (l <= r){
int m = (l + r) >> 1;
if(check(m)) ans = m, r = m - 1;
else l = m + 1;
}
return rev[ans];
}
Compilation message
eastereggs.cpp: In lambda function:
eastereggs.cpp:72:16: error: 'query' was not declared in this scope
72 | return query(node);
| ^~~~~
