Submission #1203720

#	Time	Username	Problem	Language	Result	Execution time	Memory
1203720		chawinkn	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1480 KiB

stove

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

int t[100009];

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	int n, k;
	cin >> n >> k;
	for (int i = 1; i <= n; i++)
		cin >> t[i];
	int ans=t[n]-t[1]+1;
	vector<int> gap;
	for (int i = 2; i <= n; i++)
		gap.push_back(t[i]-t[i-1]-1);

	sort(gap.begin(), gap.end(), greater<int>());
	for (int i = 0; i < k-1; i++)
		ans -= gap[i];
	cout << ans;
	// [1,2] *1* [3,4] *2* [6,7]
	// [1,7]
	return 0;
}

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