Submission #763887

#	Time	Username	Problem	Language	Result	Execution time	Memory
763887		ind1v	Stove (JOI18_stove)	C++11	100 / 100	17 ms	2160 KiB

stove

#include <bits/stdc++.h>

using namespace std;

const int N = 100005;

int n, k;
int t[N];
vector<int> gaps;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n >> k;
  for (int i = 1; i <= n; i++) {
    cin >> t[i];
    if (i > 1) {
      gaps.emplace_back(t[i] - t[i - 1] - 1);
    }
  }
  int ans = t[n] - t[1] + 1;
  sort(gaps.begin(), gaps.end());
  --k;
  while (k--) {
    ans -= gaps.back();
    gaps.pop_back();
  }
  cout << ans;
  return 0;
}

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