Submission #159242

#	Time	Username	Problem	Language	Result	Execution time	Memory
159242		socho	Stove (JOI18_stove)	C++14	100 / 100	88 ms	2184 KiB

stove

#include "bits/stdc++.h"
using namespace std;

int main() {
	
	int n, k;
	cin >> n >> k;
	int arr[n];
	for (int i=0; i<n; i++) {
		cin >> arr[i];
	}
	sort(arr, arr+n);
	int sm = arr[n-1] + 1 - arr[0];
	k--;
	int df[n-1];
	for (int i=0; i<n-1; i++) {
		df[i] = arr[i+1] - arr[i] - 1;
	}
	sort(df, df+n-1, greater<int>());
	for (int i=0; i<k; i++) {
		sm -= df[i];
	}
	
	cout << sm << endl;
	
}

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