Submission #237999

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
237999	2020-06-09 16:24:46	my99n	Potatoes and fertilizers (LMIO19_bulves)	C++14	100 / 100	184 ms	15308 KiB

bulves

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
#include<bits/stdc++.h>
using namespace std;
long long v[500100];
long long ans = 0;
priority_queue<long long> heap;
int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int n; cin >> n;
  for (int i = 1; i <= n; i++) {
    int a, b; cin >> a >> b;
    v[i] = a-b + v[i-1];
  }
  for (int i = 1; i <= n; i++) {
    if (v[i] > v[n]) {ans += v[i]-v[n]; v[i] = v[n];} // v[n] can't be changed
    if (v[i] < 0) {ans += 0-v[i]; v[i] = 0;} // v[i] >= 0
    heap.push(v[i]);
    heap.push(v[i]);
    ans += heap.top() - v[i];
    heap.pop();
  }
  cout << ans << endl;
  return 0;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 24 / 24
• Subtask 2: 10 / 10
• Subtask 3: 20 / 20
• Subtask 4: 10 / 10
• Subtask 5: 36 / 36