Submission #1273637

#	Time	Username	Problem	Language	Result	Execution time	Memory
1273637		kaiboy	Stove (JOI18_stove)	C++20	100 / 100	14 ms	828 KiB

stove

#include <algorithm>
#include <iostream>

using namespace std;

const int N = 100000;

int aa[N];

int main() {
	ios_base::sync_with_stdio(false), cin.tie(NULL);
	int n, k; cin >> n >> k;
	for (int i = 0; i < n; i++)
		cin >> aa[i];
	int ans = aa[n - 1] + 1 - aa[0];
	for (int i = 0; i + 1 < n; i++)
		aa[i] = aa[i + 1] - (aa[i] + 1);
	sort(aa, aa + n - 1, greater<>());
	for (int i = 0; i < k - 1; i++)
		ans -= aa[i];
	cout << ans << '\n';
	return 0;
}

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