Given two lists, create a function that returns a list of all of the elements in both lists, with no duplicates.
Aim:
The aim of this activity is to implement an algorithm that returns the union of elements in a collection. Although working with sets is quick and easy in Python, sometimes we might want to find the union between two lists. Create a function called unite_lists, which uses a loop to go through both lists and return common elements. Do not use the built-in set function.
Steps for Completion:
1. Define a function named unite_lists.
2. Use a for statement to iterate through the two lists, while finding the common elements in both lists without duplicates.
Snippet 6.109 shows an example output:
>>> unite_lists([2,4,6,8],[3,6,9,12])
[2, 4, 6, 8, 3, 9, 12]
