Submission #346559

#	Time	Username	Problem	Language	Result	Execution time	Memory
346559		Pety	Stove (JOI18_stove)	C++14	100 / 100	67 ms	2280 KiB

stove

#include <bits/stdc++.h>

using namespace std;

int n, t, a[100002], ans;

int main()
{
  cin >> n >> t;
  vector<int>gap;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
    if (i > 1)
      gap.push_back(a[i] - a[i - 1] - 1);
  }
  ans = a[n];
  sort(gap.begin(), gap.end(), greater<int>());
  for (int i = 0; i < t - 1; i++)
    ans -= gap[i];
  cout << ans - a[1] + 1;
  return 0;
}

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