Submission #93506

#	Time	Username	Problem	Language	Result	Execution time	Memory
93506		almasalmas	Stove (JOI18_stove)	C++17	100 / 100	21 ms	2936 KiB

stove

#include <bits/stdc++.h>

using namespace std;

long long a[500001];
long long b[500001];

int main () {	
	ios_base::sync_with_stdio (0);
	cin.tie (0), cout.tie (0);
	long long n, k;
	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] - 1;
	}
	sort (b + 1, b + n);
	long long ans = 0;
	for (int i = 1;i <= n - k;i ++) ans += b[i];
	cout << ans + n;
	return 0;
}

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