Submission #330113

#	Time	Username	Problem	Language	Result	Execution time	Memory
330113		casperwang	Stove (JOI18_stove)	C++14	100 / 100	24 ms	2416 KiB

stove

#include <bits/stdc++.h>
#define pb push_back
using namespace std;

const int MAXN = 100000;
int n, k;
int a[MAXN+1];
vector <int> d;
int ans;

signed main() {
  ios_base::sync_with_stdio(0), cin.tie(0);
  cin >> n >> k;
  for (int i = 0; i < n; i++)
    cin >> a[i];
  sort(a, a+n);
  for (int i = 1; i < n; i++)
    d.pb(a[i] - a[i-1] - 1);
  sort(d.begin(), d.end(), greater<int>());
  ans = a[n-1] - a[0] + 1;
  for (int i = 0; i < k-1; i++) {
    ans -= d[i];
  }
  cout << ans << "\n";
}

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