# Write a program (function!) that takes a list and returns a new list that
# contains all the elements of the first list minus all the duplicates.
# Write two different functions to do this - one using a loop and constructing
# a list, and another using sets.
# USING SETS


def minus_duplicates(list):
    numbers = set(list)
    list2 = list(numbers)
    print(list2)


a = [1, 1, 2, 3, 5, 7, 7, 8, 16, 13, 5]
minus_duplicates(a)


# USING A LOOP AND CONSTRUCTING A LIST


def loop(list):
    nothing = []
    for i in list:
        if i not in nothing:
            nothing.append(i)
    print(nothing)


a = [1, 1, 2, 3, 5, 7, 7, 8, 16, 13, 5]
loop(a)