Submission

Score: 50

User: ssss

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.223 second

Submitted On: 2026-03-08 23:59:49

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

int main(){
    long long n,n1,n2;
    vector<long long>all;
    cin>>n;
    all.push_back(LLONG_MIN);
    for(int i=0;i<n;i++){
        cin>>n1>>n2;
        for(int j=n1;j<n2;j++){
            all.push_back(j);
        }
    }
    sort(all.begin(),all.end());
    int d = all.size()-1;
    if(d==1){
        cout<<all[1];
    }else{
        cout<<all[d/2];
    }
}