Submission #757834

#	Time	Username	Problem	Language	Result	Execution time	Memory
757834		taher	Art Exhibition (JOI18_art)	C++17	100 / 100	181 ms	13976 KiB

art

#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<pair<long long, long long>> a(n);
  for (int i = 0; i < n; i += 1) {
    cin >> a[i].first >> a[i].second;
  }
  sort(a.begin(), a.end());
  vector<long long> dp(n);
  long long ans = 0;
  for (int i = 0; i < n; i++) {
    if (i > 0) {
      dp[i] = dp[i - 1] + a[i].second;
      dp[i] += a[i - 1].first;
      dp[i] -= a[i].first;
    }
    dp[i] = max(dp[i], a[i].second);
    ans = max(ans, dp[i]);
  }
  cout << ans << '\n';
  return 0; 
}

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