Submission

Status:

[PPPPP][-SSSS][SSSSSSSSSS]

Score: 20

User: qwerty

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.042 second

Submitted On: 2025-03-13 16:31:37

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

int main(){
    int n;
    cin >> n;
    set<int> a;
    for (int i = 0 ; i < n ; i++){
        int x, y;
        cin >> x >> y;
        for (int j = x ; j < y ; j++){
            a.insert(j);
        }
    }
    int index = floor(a.size()/2);
    auto first = a.begin();
    auto ans = next(first, index-1);
    cout << *ans;
}