Submission #1228959

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228959		nvt2k9	Art Exhibition (JOI18_art)	C++20	100 / 100	111 ms	12116 KiB

art

#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N = 5e5 + 5;
int n;
pair<int,int> a[N];
int pre[N];
signed main(){
  ios_base::sync_with_stdio(false);
  cin.tie(0); cout.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++){
    pre[i]=pre[i-1]+ a[i].second;
  }
  int amin = 0, res = 0;
  for(int i = 1; i <= n; i++){
    amin= max(amin, a[i].first - pre[i-1]);
    res = max(res, pre[i] - a[i].first + amin);
  }
  cout << res << "\n";
}

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