Submission #1324389

#	Time	Username	Problem	Language	Result	Execution time	Memory
1324389		riafhasan2010	Stove (JOI18_stove)	C++17	100 / 100	14 ms	956 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n, k; cin >> n >> k;
  ll ans = n, last = 0;
  vector<int> t;
  for (int i = 0; i < n; i++) {
    int x; cin >> x;
    if (i) t.push_back(x - last - 1);
    last = x;
  }
  sort(t.begin(), t.end());
  for (int i = 0; i < n - k; i++) ans += t[i];
  cout << ans << '\n';
}

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