Submission #1288871

#	Time	Username	Problem	Language	Result	Execution time	Memory
1288871		AbdullahIshfaq	Stove (JOI18_stove)	C++20	100 / 100	14 ms	832 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define MOD 998244353
const int N = 100005;
int n, k, a[N], r;
void solve()
{
	cin >> n >> k;
	for (int i = 0; i < n; i++)
		cin >> a[i];
	r = a[n - 1] - a[0] + 1;
	adjacent_difference(a, a + n, a);
	sort(a + 1, a + n, greater<int>());
	for (int i = 1; i < k; i++)
		r -= (a[i] - 1);
	cout << r << endl;
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	ll t = 1;
	// cin >> t;
	for (int i = 1; i <= t; i++)
	{
		solve();
	}
}

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