Submission #1083378

#	Time	Username	Problem	Language	Result	Execution time	Memory
1083378		quanquai	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2140 KiB

stove

/**
 *  author: anony
 *  created: 02.09.2024 20:10:04
**/
#include <bits/stdc++.h>
using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  
  int n, k;
  cin >> n >> k;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  vector<int> diff(n - 1);
  for (int i = 1; i < n; i++) {
    diff[i - 1] = a[i] - a[i - 1] - 1;
  }
  sort(diff.begin(), diff.end());
  cout << accumulate(diff.begin(), diff.begin() + n - k, 0ll) + n;
  
  return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50