Submission #134030

#	Time	Username	Problem	Language	Result	Execution time	Memory
134030		tutis	Stove (JOI18_stove)	C++17	100 / 100	28 ms	3320 KiB

stove

/*input
10 5
1
2
5
6
8
11
13
15
16
20

*/
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
int main()
{
	ios_base::sync_with_stdio(false);
	ll N, K;
	cin >> N >> K;
	ll T[N];
	for (int i = 0; i < N; i++)
		cin >> T[i];
	ll ans = N;
	vector<ll>X;
	for (int i = 1; i < N; i++)
		X.push_back(T[i] - T[i - 1] - 1);
	sort(X.begin(), X.end());
	for (int i = 0; i < N - K; i++)
		ans += X[i];
	cout << ans << "\n";
}

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