Submission #1033890

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033890		sp69t	Art Exhibition (JOI18_art)	C++14	100 / 100	140 ms	12368 KiB

art

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n; cin >> n;
    vector<pair<ll, ll>> a(n);
    for (auto &p : a) cin >> p.first >> p.second;
    sort(a.begin(), a.end());

    vector<ll> p(n + 1, 0);
    for (int i = 0; i < n; ++i) p[i + 1] = p[i] + a[i].second;
    ll mx = 0, res = 0;
    for (int i = 0; i < n; ++i) {
        mx = max(mx, -p[i] + a[i].first);
        res = max(res, p[i + 1] - a[i].first + mx);
    }

    cout << res << endl;
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50