Submission #278128

#	Time	Username	Problem	Language	Result	Execution time	Memory
278128		Halit	Stove (JOI18_stove)	C++17	100 / 100	96 ms	2420 KiB

stove

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

int main(){
	int n,k;
	cin >> n >> k;

	vector<int> v(n);
	for(int &e : v)
		cin >> e;
	
	vector<int> a;
	for(int i = 1;i < n;++i)
		a.push_back(v[i] - v[i-1] - 1);
	sort(a.begin(), a.end());
	reverse(a.begin(), a.end());
	
	long long ans = 0;
	for(int i = 0;i+1 < k;++i)
		ans += a[i];
	
	cout << (v.back()+1 - v.front()) - ans;
}

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