Submission #503588

#	Time	Username	Problem	Language	Result	Execution time	Memory
503588		lucri	Stove (JOI18_stove)	C++17	100 / 100	56 ms	700 KiB

stove

#include <iostream>
#include <algorithm>
using namespace std;
int n,k,t[100010],ans;
int main()
{
    cin>>n>>k;
    for(int i=1;i<=n;++i)
        cin>>t[i];
    sort(t+1,t+n+1);
    ans=t[n]+1-t[1];
    for(int i=1;i<n;++i)
        t[i]=t[i+1]-t[i]-1;
    sort(t+1,t+n);
    for(int i=n-1;i>0&&i>=n-k+1;--i)
        ans-=t[i];
    cout<<ans;
    return 0;
}

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