Submission #1234558

#	Time	Username	Problem	Language	Result	Execution time	Memory
1234558		rhm_gan	Art Exhibition (JOI18_art)	C++20	50 / 100	1096 ms	12108 KiB

art

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

#ifdef LOCAL
#include "debug.h"
#else
#define dbg(...) 42
#endif

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

    int n;
    cin >> n;

    vector<pair<int64_t, int64_t>> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i].first >> a[i].second;
    }
    sort(a.begin(), a.end());

    vector<int64_t> p(n + 1);
    for (int i = 0; i < n; i++) {
        p[i + 1] = p[i] + a[i].second;
    }

    int64_t ans = 0;
    for (int i = 0; i < n; i++) {
        for (int j = i; j < n; j++) {
            ans = max(ans, p[j + 1] - p[i] - (a[j].first - a[i].first));
        }
    }

    // int64_t sum = 0, ans = 0;
    // for (int l = 0, r = 0; r < n; r++) {
    //     sum = sum + a[r].second;
    //     ans = max(ans, sum - (a[r].first - a[l].first));
    //     if (sum - a[l].second - (a[r].first - a[l + 1].first) > ans) {
    //         ans = sum - a[l].second - (a[r].first - a[l + 1].first);
    //         l++;
    //     }
    // }

    cout << ans << '\n';

    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50