Submission #1158745

#	Time	Username	Problem	Language	Result	Execution time	Memory
1158745		Hakuna	Art Exhibition (JOI18_art)	C++20	100 / 100	107 ms	12116 KiB

art

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

int n;
pair<long long, long long> p[(int)5e5 + 10];
long long pref[(int) 5e5 + 10];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    
    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++) {
        pref[i] = pref[i - 1] + p[i].second;
    }
    long long val = 0;
    long long ans = 0;
    for (int i = 1; i <= n; i++) {
        val = max(val, p[i].first - pref[i - 1]);
        ans = max(ans, pref[i] - p[i].first + val);
    }
    cout << ans;

    return 0;
}

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