Submission #335371

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
335371	2020-12-12 06:15:43	AQT	Art Exhibition (JOI18_art)	C++17	100 / 100	251 ms	24816 KiB

art

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#include <bits/stdc++.h>
using namespace std;
int N;
pair<long long, long long> arr[500005];
long long pre[500005];
int main(){
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  cin >> N;
  for(int i = 1; i<=N; i++){
    cin >> arr[i].first >> arr[i].second;
  }
  sort(arr+1, arr+1+N);
  for(int i = 1; i<=N; i++){
    pre[i] = pre[i-1] + arr[i].second;
  }
  long long mn = LLONG_MAX/4;
  long long ans = 0;
  for(int i = 1; i<=N; i++){
    mn = min(mn, - arr[i].first + pre[i-1]);
    ans = max(ans, pre[i] - arr[i].first - mn);
  }
  cout << ans << "\n";
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50