Submission #1165347

#	Time	Username	Problem	Language	Result	Execution time	Memory
1165347		chikien2009	Art Exhibition (JOI18_art)	C++20	100 / 100	328 ms	15928 KiB

art

#include <bits/stdc++.h>

using namespace std;

inline void setup()
{
#ifndef ONLINE_JUDGE
    freopen("test.inp", "r", stdin);
    freopen("test.out", "w", stdout);
#endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int n;
long long pre[500001], premin[500001], res = 0;
pair<long long, long long> p[500001];

int main()
{
    // setup();

    cin >> n;
    for (int i = 1; i <= n; ++i)
    {
        cin >> p[i].first >> p[i].second;
    }
    sort(p + 1, p + n + 1);
    for (int i = 1; i <= n; ++i)
    {   
        premin[i] = min(premin[i - 1], pre[i - 1] - p[i].first);
        pre[i] = pre[i - 1] + p[i].second;
        res = max(res, pre[i] - p[i].first - premin[i]);
    }
    cout << res;
    return 0;
}

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