Submission #1307993

#	Time	Username	Problem	Language	Result	Execution time	Memory
1307993		pobe	Art Exhibition (JOI18_art)	C++20	100 / 100	129 ms	12804 KiB

art

#include <bits/stdc++.h>
#include <cstdio>
#define int long long
using namespace std;
void solve() {
    int n;
    cin >> n;
    vector <pair <int, int>> val(n);
    for (auto &[a, b] : val) {
        cin >> a >> b;
    }
    sort(val.begin(), val.end());
    vector <int> prev(n + 1, 0);
    for (int i = 0; i < n; ++i) {
        prev[i + 1] = prev[i] + val[i].second;
    }
    int mn = 2e16;;
    int ans = 0;
    for (int i = 0; i <= n; ++i) {
//        cout << prev[i] << " " << mn << '\n';
        ans = max(ans, prev[i] - mn - (i == 0 ? 0 : val[i - 1].first));
        mn = min(mn, prev[i] - val[i].first);
    }
    cout << ans << '\n';
}
signed main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int t = 1;
//    cin >> t;
    for (int i = 0; i < t; ++i) {
        solve();
    }
}

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