Implementing fuction that takes in array and multiplies each element by given int [duplicate]

Answer 1

As written, your function should not return the given list; it should return the value of A[0] * k, the scalar 50.

Let's walk through the code for a moment, as you should have done with a print statement before posting.

for i in A:
    # i is a local variable; it takes on the value of A[0], or 5
    i = i*k
    # i is now 50
    return i
    # You return 50 to the calling program -- which ignores the return value.

At this point, the function is done, gone, exited, and will execute no more until you call it again.

To get the list (you have a list, not an **array*) altered, you can change each element in place. Don't leave the function until you've processed all of the elements.

for i in range(len(A)):
    A[i] *= k

return