Submission

Score: 0

User: Trin1506

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.002 second

Submitted On: 2026-03-04 20:45:45

#include <bits/stdc++.h>
using namespace std;
int main(){
        int n;
        cin >> n;
        int range=0;
        vector<vector<int>>arr(n,vector<int>(2));
        for(int i=0;i<n;i++){
            cin >> arr[i][0] >> arr[i][1];
            range +=arr[i][1]-arr[i][0];
        }
        int mid = range/2;
        for(int i=0;i<n;i++){
            if(mid-(arr[i][1]-arr[i][0])<=0){
                cout << arr[i][0]+mid-1;
                return 0;
            }
            mid-=(arr[i][1]-arr[i][0]);
        }




}