Robot return to origin

index.py

Description:

Imagine a robot standing at position (0,0) in a 2D grid, given a string consisting of its moves, find the
final location of the robot

Type of parameters passed
U: up, INCREASE in the y-axis
D: down, DECREASE in the y axis
R: right, INCREASE in the x-axis
L: left, DECREASE in the x-axis

example:
params = UD
start_position = (0, 0)

We'll represent our current position by 2 variables x and y which will initially be both at zero

The first character we encounter is the character 'U', which stands for 'UP'. Will increase the y axis of our position by one
(1).
Our current postiom = (0, 1)

Next, we move to the second character which is "D" which stands for decrementing the y-axis by one(1).
our current position will be zero & zero