Submission #1245491

#	Time	Username	Problem	Language	Result	Execution time	Memory
1245491		islam_2010	Easter Eggs (info1cup17_eastereggs)	C++20	0 / 100	1 ms	492 KiB

eastereggs

#include "grader.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> a;
vector<vector<int>> g;

void dfs(int node, int par){
    a.push_back(node);
    for(auto i: g[node]){
        if(i!=par){
            dfs(i, node);
        }
    }
}

int findEgg(int n, vector<pair<int, int>> bridges){
    g.assign(n+1, {});
    a.clear();
    for(auto [u, v]: bridges){
        g[u].push_back(v);
        g[v].push_back(u);
    }dfs(1, 0);
    int l = 0, r = n-1;
    while (l < r) {
        int mid = (l + r) / 2;

        if (query({a.begin(), a.begin() + mid})) {
            r = mid;
        } else {
            l = mid + 1;
        }
    }return a[l];
}

• Subtask 1: 0 / 40
• Subtask 2: 0 / 40
• Subtask 3: 0 / 20