Submission #254622

#	Time	Username	Problem	Language	Result	Execution time	Memory
254622		alrad	Stove (JOI18_stove)	C++17	100 / 100	34 ms	2432 KiB

stove

#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()

int main() {
   ios_base :: sync_with_stdio(0);
   cin.tie(0) , cout.tie(0);
   int n , k;
   cin >> n >> k;
   vector<int> a(n);
   for (int i = 0; i < n; i++) {
      cin >> a[i];
   }
   int ans = n;
   vector<int> d;
   for (int i = 1; i < n; i++) {
      d.push_back(a[i] - a[i - 1]);
   }
   sort(all(d));
   for (int i = 0; i < n - k; i++) {
      ans--;
      ans += d[i];
   }
   cout << ans << '\n';
   return 0;
}

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