Submission #1289749

#	Time	Username	Problem	Language	Result	Execution time	Memory
1289749		haha	Art Exhibition (JOI18_art)	C++20	100 / 100	132 ms	12104 KiB

art

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

const int maxn = 5e5 + 5;

int n;
pair<ll, ll> a[maxn];
ll prefix[maxn];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> a[i].first >> a[i].second; 

    sort(a + 1, a + n + 1);

    for (int i = 1; i <= n; i++)
        prefix[i] = prefix[i - 1] + a[i].second;

    ll ans = LLONG_MIN;
    ll best = prefix[0] - a[1].first; 

    for (int r = 1; r <= n; r++) {
        ans = max(ans, prefix[r] - a[r].first - best);
        best = min(best, prefix[r] - a[r + 1].first);
    }

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

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