Submission #593274

#	Time	Username	Problem	Language	Result	Execution time	Memory
593274		daisy2	Stove (JOI18_stove)	C++14	100 / 100	44 ms	2028 KiB

stove

#include<iostream>
#include<algorithm>
using namespace std;
long long n,k,in[100005],pr,a,r;
int main()
{
    cin>>n>>k;k--;
    cin>>pr;
    r-=(pr-1);
    for(int i=1;i<n;i++)
    {
        cin>>a;

        in[i-1]=a-pr-1;
        pr=a;
    }
    r+=pr;
    sort(in,in+n);

    for(int i=n-1;i>=n-k;i--)
    {
       r-=in[i];
    }
    cout<<r<<endl;
}

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