Submission #1309542

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309542		husseinjuanda	Art Exhibition (JOI18_art)	C++20	100 / 100	127 ms	8260 KiB

art

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

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n; cin >> n;
    vector<pair<int, int>> a(n);
    for(int i = 0; i < n; i++){
        cin >> a[i].first >> a[i].second;
    }
    sort(a.begin(), a.end());
    int sum = -1e18;
    int mx = 0;
    for(int i = n-1; i >= 0; i--){
        sum = max(sum+a[i].second, a[i].second - a[i].first);
        mx = max(mx, sum + a[i].first);
    }
    cout << mx << "\n";
    return 0;
}

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