Submission #1091256

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091256		___	Stove (JOI18_stove)	C++17	100 / 100	15 ms	3292 KiB

stove

#include <bits/stdc++.h>
#define int long long int
#define ff first
#define ss second
#define FT ios_base::sync_with_stdio(false);cin.tie(0);
using namespace std;
vector <int> diff;
const int maxn = 1e5 + 10;
int t[maxn];
signed main()
{
	FT;
	int n , k;
	cin >> n >> k;
	for (int i = 1 ;  i <= n ; i++)
	{
		cin >> t[i];
	}
	for (int i = 2 ; i <= n ; i++)
	{
		diff.push_back(t[i] - (t[i - 1] + 1));
	}
	sort (diff.begin() , diff.end());
	int ans = n;
	for (int i = 0 ; i < n - k ; i++)
	{
		ans += diff[i];
	}
	cout << ans << endl;
	return 0;
}

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