Submission #1287353

#	Time	Username	Problem	Language	Result	Execution time	Memory
1287353		bilgun	Stove (JOI18_stove)	C++20	100 / 100	37 ms	1436 KiB

stove

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

int main()
{
	int n, k;
	cin >> n >> k;
	vector<int> col(n);
	for( int i = 0; i < n; i++) {
		cin >> col[i];
	}
	if( n == k) {
		cout << n << endl;
		return 0;
	}
	vector<int> pref;
	for( int i = 1; i < n; i++) {
		pref.push_back(col[i] - col[i - 1]);
	}
	sort( pref.begin(), pref.end());
	int ans = k;
	for( int i = 0; i <n-k; i++){
	    ans += pref[i];
	}
	cout << ans;

	return 0;
}

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