이게 아니고 무슨말인지 모르겠네요

#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

vector<int> q;
int n, m, k;
int temp = 0;
int main()
{
cin >> n >> m;

for (int i = 1; i <= n; i++)
{
cin >> k;
q.push_back(k);
}

sort(q.begin(), q.end());

for (int i = ((m+1)/2) -1; i < (((m + 1) / 2) - 1)+ n - m+1; i++)
{
temp += q[i];
}

cout << temp << endl;

}