제출 #925530

#제출 시각아이디문제언어결과실행 시간메모리
925530VMaksimoski008Art Exhibition (JOI18_art)C++14
100 / 100
468 ms48468 KiB
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

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

    vector<pair<ll, ll> > v(n+1);
    for(int i=1; i<=n; i++) cin >> v[i].first >> v[i].second;
    sort(v.begin()+1, v.end());

    ll ans = 0;

    vector<ll> pref(n+1);
    set<ll> s;
    for(int i=1; i<=n; i++) {
        pref[i] = pref[i-1] + v[i].second;
        s.insert(v[i].first - pref[i-1]);
        ans = max(ans, pref[i] - v[i].first + *s.rbegin());
    }

    cout << ans << '\n';
    return 0;
}
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