Submission

Status:

[PPPPP][-SSSS][SSSSSSSSSS]

Score: 20

User: Nightingale

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.046 second

Submitted On: 2025-03-28 12:28:02

#include <bits/stdc++.h>
#define int long long
using namespace std;
int32_t main() 
{
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int a;
  cin >> a;
  set<int> book;
  for(int i=0;i<a;i++){
    int b;
    int c;
    cin >> b >> c;
    for(int j=b;j<c;j++){
      book.insert(j);
    }
  }
  auto it = book.begin();
  advance(it,book.size()/2-1);
  cout << *it;
}