제출 #127230

#제출 시각아이디문제언어결과실행 시간메모리
127230TienDungzStove (JOI18_stove)C++14
100 / 100
87 ms2308 KiB
#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;
}
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