문제
풀이
#include <algorithm>
#include <iostream>
using namespace std;
void solve(void) {
int n; cin >> n;
int ans = 0, cur = 0;
while (n--) {
int d, v; cin >> d >> v;
cur += v;
ans = max(ans, cur);
cur -= d;
}
cout << ans;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}