Submission

Score: 0

User: 666whynot

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-23 16:51:41

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

int main(){
    ios::sync_with_stdio(false);cin.tie(nullptr);
    int n;cin >> n;
    vector<int> v;
    while(n--){
        int x,y;cin >> x >> y;
        if(x < y)for(int i=x;i<y;i++){
            v.push_back(i);
        }
        if(v.empty())return 0;
    }
    sort(v.begin(),v.end());
    int a = v.size() / 2;
    if(v.size() % 2 == 0){
        cout << (v[a-1] + v[a]) / 2;
    }
    else cout << v[a];
    
}