#include <bits/stdc++.h>
using namespace std;
int main() {
  vector<int> v;
  vector<int>::iterator it;
  int n, q, x, count1 = 0, x1;
  cin >> q;
  while (q--) {
    cin >> n;
    while (n--) {
      cin >> x;
      v.push_back(x);
    }
    it = v.end() - 1;
    x1 = *it;
    for (it = v.end() - 2; it >= v.begin(); it--) {
      if (*it > x1)
        count1++;
      else
        x1 = *it;
    }
    cout << count1 << endl;
    count1 = 0;
    v.clear();
  }
}
