Submission

Score: 0

User: Hxluk.ka

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.002 second

Submitted On: 2026-03-07 22:57:59

#include <iostream>
using namespace std;
const int as=102;
int n, x[as], y[as], s, cnt;
int main() {
    cin.tie(0)->sync_with_stdio(0);

    cin>>n;
    for (int i=1; i<=n; i++) {
        cin>>x[i]>>y[i];
        s+=y[i]-x[i];
    }
    for (int i=1; i<=n; i++) {
        cnt+=y[i]-x[i];
        if (cnt>s/2) {
            return cout<<s/2 - (cnt-y[i]+x[i]) + x[i]-1, 0;
        }
    }
}