Snail Python Given an n x n array, return the array elements arranged from outermost elements to the middle element, traveling clockwise.
array = [[1,2,3], [4,5,6], [7,8,9]] snail(array) #=> [1,2,3,6,9,8,7,4,5]
For better understanding, please follow the numbers of the next array consecutively:
array = [[1,2,3], [8,9,4], [7,6,5]] snail(array) #=> [1,2,3,4,5,6,7,8,9]
NOTE: The idea is not sort the elements from the lowest value to the highest; the idea is to traverse the 2-d array in a clockwise snailshell pattern.
NOTE 2: The 0x0 (empty matrix) is represented as [[]]