#include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int t;     cin >> t;     while (t--) {       int n, k;       cin >> n >> k;       vector<int> v(n);       for (auto &it : v) cin >> it;       int ans = 0;       sort(v.begin(), v.end());       for (int i = n - 1; i >= n - k; i--) ans += v[i - k] / v[i];       for (int i = 0; i < n - 2 * k; i++) ans += v[i];       cout << ans << endl;     }   }   