【題解】Codeforces 1380C. Create The Teams

#include <iostream>
#include <algorithm>
using namespace std;
 
int t, n;
long long x, a[100005];
 
int main(){
	cin >> t;
	while (t--){
		cin >> n >> x;
		for (int i = 0; i < n; i++){
			cin >> a[i];
		}
        sort(a, a+n, greater<int>());
		int p = 0, ans = 0;
		long long mn = 1e9;
		for (int i = 0; i < n; i++){
			mn = min(mn, a[i]);
			if (mn*(i-p+1) >= x){
				ans++;
				p = i+1;
				mn = 1e9;
			}
		}
		cout << ans << "\n";
	}
}