### 3.1 Print List

Write a function that prints out a list, one element per line

#### 3.1.1 Example

1: breakfast = ["Sausage", "Eggs", "Beans", "Bacon", "Tomatoes", "Mushrooms"] 2: 3: print_list(breakfast) 4: *** Output *** 5: Sausage 6: Eggs 7: Beans 8: Bacon 9: Tomatoes 10: Mushrooms

### 3.2 Last Element of Array

Write a function that returns the last element of a string array

#### 3.2.1 Example

1: breakfast = ["Sausage", "Eggs", "Beans", "Bacon", "Tomatoes", "Mushrooms"] 2: 3: print(last_element(breakfast)); 4: *** Output *** 5: Mushrooms

### 3.3 Last But One Element of Array

Write a function that returns the last but one element of a string array

#### 3.3.1 Example

1: breakfast = ["Sausage", "Eggs", "Beans", "Bacon", "Tomatoes", "Mushrooms"] 2: 3: print(last_but_one(breakfast)); 4: *** Output *** 5: Tomatoes

### 3.4 Reverse a list, leaving original intact

Return a list in reverse order, while leaving the original list intact.

#### 3.4.1 Example

1: breakfast = ["Sausage", "Eggs", "Beans", "Bacon", "Tomatoes", "Mushrooms"] 2: 3: print(my_reverse(breakfast)) 4: print(breakfast) 5: *** Output *** 6: : Mushrooms 7: : Tomatoes 8: : Bacon 9: : Beans 10: : Eggs 11: : Sausage 12: : Sausage 13: : Eggs 14: : Beans 15: : Bacon 16: : Tomatoes 17: : Mushrooms

### 3.5 Palindromic lists

Write a function that tests to see if a list is palindromic, i.e. the elements are the same when reversed.

#### 3.5.1 Example

1: palindromic = ["Sausage", "Eggs", "Beans", "Beans", "Eggs", "Sausage"] 2: breakfast = ["Sausage", "Eggs", "Beans", "Bacon", "Tomatoes", "Mushrooms"] 3: 4: print(is_palindrome(palindromic)) 5: print(is_palindrome(breakfast)) 6: *** Output *** 7: True 8: False

### 3.6 Consecutive Duplicates

Write a function to print out list of integers with consecutive duplicates eliminated

1: nums = [1,1,3,3,3,2,2,2,1,1,1,1,4,4,4,4] 2: 3: compress(nums) 4: *** Output *** 5: : 1 6: : 3 7: : 2 8: : 1 9: : 4

### 3.7 Pack Duplicates

Pack consecutive duplicates of a char list into Strings

1: letters = ['a', 'a', 'a', 'a', 'b', 'c', 'c', 'a', 'a', 'd', 'e', 'e', 'e', 'e'] 2: 3: pack(letters) 4: *** Output *** 5: : aaaa, b, cc, aa, d, eeee