Submission #1212401

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212401		randomguy123	Art Exhibition (JOI18_art)	C++17	100 / 100	111 ms	12112 KiB

art

#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    vector<pair<int, int>> v(n);
    for (int i = 0; i < n; i++) {
        cin >> v[i].first >> v[i].second;
    }
    sort(v.begin(), v.end());
    vector<int> pre(n + 1, 0);
    for (int i = 0; i < n; i++) {
        pre[i + 1] = pre[i] + v[i].second;
    }
    int ans = LLONG_MIN;
    int temp = pre[0] - v[0].first;
    for (int r = 1; r <= n; r++) {
        ans = max(ans, pre[r] - v[r - 1].first - temp);
        if (r < n) {
            temp = min(temp, pre[r] - v[r].first);
        }
    }
    cout << ans;
    return 0;
}

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