Submission

Status:

[-SSSS][SSSSS][SSSSSSSSSS]

Score: 0

User: Test

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.002 second

Submitted On: 2025-03-25 10:01:56

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

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n;
    cin >> n;
    set<float> library;

    for (int i = 0; i < n; i++) {
        float a, b;
        cin >> a >> b;
        for (float j = a; j < b; j++) {
            library.insert(j);
        }
    }

    int aa = library.size() / 2;
    cout << aa << endl;

    auto it = library.begin();
    advance(it, aa - 1);
    cout << *it << endl;

    return 0;
}