Assignment text: Link
A countdown sequence is a descending sequence of k integers from k down to 1 (e.g. 5, 4, 3, 2, 1).
Write a function that returns an array of the form[x, y] where x is the number of countdown sequences
in the given array and y is the array of those sequences in the order in which they appear in the
array.
Instructions:
1. Input an array
2. Click "Countdowns" to show number of countdowns and each vali
Note: a single 1 is a valid countdown