Submission #698061

#	Time	Username	Problem	Language	Result	Execution time	Memory
698061		acceptify	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2160 KiB

stove

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

const int mxn = 1e5 + 5;

int n, k, a[mxn], b[mxn], ans = 0;

int main() {
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> n >> k;
	for (int i = 1; i <= n; i++) cin >> a[i];
	for (int i = 1; i < n; i++) b[i] = a[i + 1] - a[i];
	sort(b + 1, b + n);
	for (int i = 1; i <= n - k; i++) ans += b[i];
	cout << ans + k << "\n";
}

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