How can I reverse a list in Python?

Question

How can I do the following in Python?

array = [0, 10, 20, 40]
for (i = array.length() - 1; i >= 0; i--)

I need to have the elements of a

Answer 1

Using some logic

Using some old school logic to practice for interviews.

Swapping numbers front to back. Using two pointers index[0] and index[last]

def reverse(array):
    n = array
    first = 0
    last = len(array) - 1
    while first < last:
      holder = n[first]
      n[first] = n[last]
      n[last] = holder
      first += 1
      last -= 1
    return n

input -> [-1 ,1, 2, 3, 4, 5, 6]
output -> [6, 1, 2, 3, 4, 5, -1]