Submission #1289753

#	Time	Username	Problem	Language	Result	Execution time	Memory
1289753		haha	Art Exhibition (JOI18_art)	C++20	50 / 100	1096 ms	12096 KiB

art

#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int maxn=5e5+5;

int n;
pair<ll,ll> p[maxn];
ll sum[maxn];

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++) sum[i] = sum[i-1] + p[i].second;

    ll ans = -1e18;
    for (int r = 1; r <= n; r++) {
        for (int l = 1; l <= r; l++) {
            ans = max(ans, sum[r] - sum[l-1] - (p[r].first - p[l].first));
        }
    }

    cout << ans;
}

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