Submission #203279

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
203279	2020-02-20 05:04:03	dolphingarlic	Potatoes and fertilizers (LMIO19_bulves)	C++14	100 / 100	189 ms	15336 KiB

bulves

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#include <bits/stdc++.h>
using namespace std;
long long c[500001], ans = 0;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n;
  cin >> n;
  for (int i = 1; i <= n; i++) {
    long long a, b;
    cin >> a >> b;
    c[i] = c[i - 1] + a - b;
  }
  priority_queue<long long> pq;
  for (int i = 1; i <= n; i++) {
    if (c[i] > c[n]) {
      ans += c[i] - c[n];
      c[i] = c[n];
    } else if (c[i] < 0) {
      ans -= c[i];
      c[i] = 0;
    }
    pq.push(c[i]); pq.push(c[i]);
    ans += pq.top() - c[i];
    pq.pop();
  }
  cout << ans;
  return 0;
 
 
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• Subtask 1: 24 / 24
• Subtask 2: 10 / 10
• Subtask 3: 20 / 20
• Subtask 4: 10 / 10
• Subtask 5: 36 / 36