Submission #461341

#	Time	Username	Problem	Language	Result	Execution time	Memory
461341		Hamed5001	Stove (JOI18_stove)	C++14	100 / 100	23 ms	2328 KiB

stove

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

void solve() {
	int N, K;
	cin >> N >> K; 
	int ans = N;
	vector<int> T(N); for (auto& t : T) cin >> t;
	vector<int> diff;

	for (int i = 0; i+1 < N; i++) 
		diff.push_back(T[i+1] - T[i] - 1);

	sort(diff.begin(), diff.end());

	for (auto it : diff)
		ans += it;

	for (int i = diff.size()-1; K > 1 && i > 0; --K, --i) {
		ans -= diff[i];
	}
	cout << ans;
}

int main() {

	ios_base::sync_with_stdio(false);
	cin.tie(0);
	solve();
}

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