제출 #370539

#제출 시각아이디문제언어결과실행 시간메모리
370539amano_hinaStove (JOI18_stove)C++14
100 / 100
50 ms1280 KiB
#include<bits/stdc++.h>
using namespace std;
int n,k,ans,a[100005],b[100005];
int main()
{
    cin>>n>>k;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    for(int i=2;i<=n;i++)
    {
        b[i-2]=a[i]-(a[i-1]+1);
    }
    sort(b,b+(n-1));
    ans=n;
    for(int i=0;i<=n-k-1;i++)
    {
        ans=ans+b[i];
    }
    cout<<ans;


}
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