Submission

Score: 0

User: Vlorinde

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.002 second

Submitted On: 2026-03-10 15:57:59

#include <iostream>
using namespace std;

int main(){
    int n;
    cin>>n;

    long long x[105],y[105];
    long long total=0;

    for(int i=0;i<n;i++){
        cin>>x[i]>>y[i];
        total+=y[i]-x[i];
    }

    long long target=total/2;
    long long sum=0;

    for(int i=0;i<n;i++){
        long long len=y[i]-x[i];
        if(sum+len>target){
            cout<<x[i]+(target-sum);
            return 0;
        }
        sum+=len;
    }
}