Submission #537267

#	Time	Username	Problem	Language	Result	Execution time	Memory
537267		theysoldtheworld	Stove (JOI18_stove)	C++14	100 / 100	25 ms	2336 KiB

stove

#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> cur;
  for (int i = 0 ; i < n - 1 ; i++) {
    cur.push_back(a[i + 1] - (a[i] + 1));
  }
  sort(cur.begin() , cur.end());
  long long ans = n;
  for (int i = 0 ; i < n - k ; i++) {
    ans += cur[i];
  }
  cout << ans << '\n';
  return 0; 
}

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