Submission #1135102

#	Time	Username	Problem	Language	Result	Execution time	Memory
1135102		nikatamliani	Stove (JOI18_stove)	C++20	100 / 100	13 ms	2244 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long

signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  int N, K; cin >> N >> K;
  vector<int> t(N);
  for (int i = 0; i < N; ++i) {
    cin >> t[i];
  }

  vector<int> differences;
  for (int i = 1; i < N; ++i) {
    differences.push_back(t[i] - t[i - 1]);
  }

  int sum = t[N - 1] - t[0] + 1;
  sort(differences.rbegin(), differences.rend());
  for (int i = 0; i < K - 1; ++i) {
    sum -= differences[i] - 1;
  }

  cout << sum << endl;
}

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