Submission #1283068

#	Time	Username	Problem	Language	Result	Execution time	Memory
1283068		lechaa	Stove (JOI18_stove)	C++20	100 / 100	15 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];
  }
  int cur = t.back() - t[0] + 1;
  vector<int> d;
  for(int i = 0; i < n-1; i++){
    d.push_back(t[i+1] - t[i] - 1);
  }
  sort(d.rbegin(), d.rend());
  int sz = d.size();
  for(int i = 0; i < min(k-1, sz); i++){
    cur -= d[i];
  }
  cout << cur << "\n";
  return 0;
}

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