3.19. My Range

Our range function is broken at the labs. So, we need a new one! Unfortunately, there are no for statements left. We have to do it recursively. Can you help us?

Your goal is to write a function named my_range that takes three integers as input and returns a list of integers. It should works in the same way range function works.

You cannot use the \(\color{purple}{\texttt{range()}}\) function and for statements.

You can refer the textbook for recursion.

Sample I/O:

>>> my_range(3, 10, 1)
[3,4,5,6,7,8,9]

>>> my_range(3, 9, 2)
[3,5,7]

Show the Answer

def my_range(start,stop,step):
    if(stop < start):
        return []
    else:
        return [start] + my_range(start + step, stop, step) # note that left side is always a list and right side will be list even it is empty.