1047B - Cover Points - CodeForces Solution

#include <bits/stdc++.h>
using namespace std;
#define IO ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define ll long long
const long long MOD = 1e9 + 7, OO = 1e18;
const double PI = acos(-1);
const int N = 1e5 + 5;
int main() {
    IO
    ll n,x,y,mx=0;
    cin >> n;
    for (int i = 0; i < n; i++)
    {
        cin >> x >> y;
        mx = max (mx,x+y);
    }
    cout << mx;
    
    
    
    return 0;
}