Submission #1283840

#	Time	Username	Problem	Language	Result	Execution time	Memory
1283840		arashmemar	Stove (JOI18_stove)	C++20	100 / 100	36 ms	1064 KiB

stove

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

const int maxn = 1e6 + 10;

int a[maxn];

int main()
{
	int n, k;
	cin >> n >> k;

	if (n == 1)
	{
		cout << 1;
		return 0;
	}

	int p, s;
	cin >> s;
	p = s;
	for (int i = 1;i < n;i++)
	{
		int cur;
		cin >> cur;
		a[i] = cur - p - 1;
		p = cur;
	}

	int ans = p - s + 1;
	sort(a + 1, a + n);
	reverse(a + 1, a + n);
	for (int i = 1;i < k;i++)
	{
		ans -= a[i];
	}
	cout << ans;
}

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