Submission #127230

#	Time	Username	Problem	Language	Result	Execution time	Memory
127230		TienDungz	Stove (JOI18_stove)	C++14	100 / 100	87 ms	2308 KiB

stove

#include<bits/stdc++.h>
using namespace std;
int n,k,a[1000005],res=0;
vector<int> adj;
signed main()
{
	cin>>n>>k;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
		if(i>1) adj.push_back(a[i]-a[i-1]-1);
	}
	sort(adj.begin(),adj.end());
	res=n;
	for(int i=0;i<=n-k-1;i++) res=res+adj[i];
	cout<<res;
}

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