Submission #1228764

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228764		ngu	Stove (JOI18_stove)	C++20	100 / 100	13 ms	2244 KiB

stove

#include <bits/stdc++.h>
#define int long long

using namespace std;

int32_t main() {
	cin.tie(0)->sync_with_stdio(false);
	int n, k;
	cin >> n >> k;
	vector<int> a(n);
	for (int i = 0; i < n; i++) cin >> a[i];
	int t = a[n - 1] + 1 - a[0];
	vector<int> gap;
	for (int i = 1; i < n; i++) {
		gap.push_back(a[i] - (a[i - 1] + 1));
	}
	sort(gap.rbegin(), gap.rend());

	for (int i = 0; i < k - 1; i++) {
		if(i >= gap.size()) break;
		t -= gap[i];
	}

	cout << t;
}

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