Scanf.scanf "%d %d" (fun n k ->
    let a = Array.init n (fun _ -> Scanf.scanf " %d" (fun a -> a)) in
    Array.sort compare a;

    let rec loop i j acc =
        if i < 0 || j = n then acc else
        if a.(i) * a.(j) < 2 * k then loop i (j + 1) acc else
            let acc = acc + n - j in
            loop (i - 1) j acc
    in
    loop (n - 1) 0 0 |> Printf.printf "%d\n"
)