Submission #1150503

#	Time	Username	Problem	Language	Result	Execution time	Memory
1150503		eldorbek_008	Stove (JOI18_stove)	C++17	100 / 100	42 ms	5808 KiB

stove

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

#define int int64_t

int32_t main() {
	int n, k;
	cin >> n >> k;
	if (n == 1) {
		cout << k;
		return 0;
	}
	vector<int> a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	int ans = a.back() - a[0] + 1;
	multiset<int, greater<int>> diff;
	for (int i = 1; i < n; i++) {
		diff.insert(a[i] - a[i - 1] - 1);
	}
	auto it = diff.begin();
	for (int i = 0; i < k - 1; i++) {
		ans -= *(it++);
	}
	cout << ans;
	return 0;
} 

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