Submission #1092147

#	Time	Username	Problem	Language	Result	Execution time	Memory
1092147		Flandre	Stove (JOI18_stove)	C++17	100 / 100	39 ms	2140 KiB

stove

#include <bits/stdc++.h>
using namespace std;
 
#define ui unsigned int
 
int main() {
  int N, K; // K is matches
  cin >> N >> K;
 
  ui wastes[N - 1];
  ui t[N];
 
  cin >> t[0];
  for (int i = 1; i < N; i++) {
    cin >> t[i];
    wastes[i-1] = t[i] - t[i-1] - 1;
  }
 
  sort(wastes, wastes+N-1);
 
  ui totalwaste = 0;
  for (int i = 0; i < N - K; i++) {
    totalwaste += wastes[i];
  }
 
  cout << N + totalwaste << endl;
 
  return 0;
}

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