Submission #1235764

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235764		bach25089	Art Exhibition (JOI18_art)	C++20	100 / 100	105 ms	8264 KiB

art

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

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;
    vector<pair<long long, long long>> a(n);
    for (int i = 0; i < n; i++)
    {
        cin >> a[i].first >> a[i].second;
    }
    sort(a.begin(), a.end(), [](auto &x, auto &y)
    {
        return x.first < y.first;
    });
    long long res = LLONG_MIN;
    long long m = a[0].first;
    long long pf = 0;
    for (int i = 0; i < n; i++)
    {
        pf += a[i].second;
        long long mk = pf - a[i].first + m;
        res = max(res, mk);
        if (i + 1 < n)
        {
            m = max(m, a[i + 1].first - pf);
        }
    }
    cout << res;
}

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