Submission #818711

#	Time	Username	Problem	Language	Result	Execution time	Memory
818711		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	20 ms	1368 KiB

stove

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

int N, K;

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

      cin >> N >> K;
      vector<int> t(N);

      for(int i = 0; i < N; i++) cin >> t[i];

      int ans = t.back() - t[0] + 1;

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

      sort(v.begin(), v.end());

      while(!v.empty() && K > 1) {
            ans -= v.back();
            K--;
            v.pop_back();
      }

      cout << ans << '\n';
}

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