Submission #391744

#	Time	Username	Problem	Language	Result	Execution time	Memory
391744		timmyfeng	Art Exhibition (JOI18_art)	C++17	100 / 100	242 ms	8232 KiB

art

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

const int N = 500000;

array<long long, 2> artwork[N];

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

    int n;
    cin >> n;

    for (int i = 0; i < n; ++i) {
        auto &[a, b] = artwork[i];
        cin >> a >> b;
    }

    sort(artwork, artwork + n);

    long long right = 0, left = 0, ans = 0;
    for (int i = 0; i < n; ++i) {
        auto [a, b] = artwork[i];
        left = min(left, right - a);
        right += b;
        ans = max(ans, right - a - left);
    }

    cout << ans << "\n";
}

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