Python – Set Exercises

Here are some exercises to practice working with Python sets. These exercises will help you understand how to perform various set operations, such as adding, removing, and modifying elements, and combining sets.

Exercise 1: Create a Set

• Create a set called my_set with the following elements: 1, 2, 3, 4, 5.
• Print the set.

Example Solution:

my_set = {1, 2, 3, 4, 5}
print(my_set)

Exercise 2: Add Elements to a Set

• Start with the set my_set = {10, 20, 30}.
• Add the elements 40 and 50 to the set using the add() method.
• Print the updated set.

Example Solution:

my_set = {10, 20, 30}
my_set.add(40)
my_set.add(50)
print(my_set)

Exercise 3: Remove an Element from a Set

• Start with the set my_set = {1, 2, 3, 4, 5}.
• Remove the element 3 using the remove() method.
• Print the set after removing the element.

Example Solution:

my_set = {1, 2, 3, 4, 5}
my_set.remove(3)
print(my_set)

Exercise 4: Check if an Element Exists in a Set

• Start with the set my_set = {1, 2, 3, 4, 5}.
• Check if the number 3 exists in the set using the in keyword.
• Print True if the element exists, otherwise print False.

Example Solution:

my_set = {1, 2, 3, 4, 5}
print(3 in my_set)  # Output: True

Exercise 5: Union of Two Sets

• Create two sets: set1 = {1, 2, 3} and set2 = {3, 4, 5}.
• Find the union of these two sets using the union() method or the | operator.
• Print the resulting set.

Example Solution:

set1 = {1, 2, 3}
set2 = {3, 4, 5}
result_set = set1.union(set2)
print(result_set)  # Output: {1, 2, 3, 4, 5}

Exercise 6: Intersection of Two Sets

• Create two sets: set1 = {1, 2, 3, 4} and set2 = {3, 4, 5, 6}.
• Find the intersection of these two sets using the intersection() method.
• Print the resulting set.

Example Solution:

set1 = {1, 2, 3, 4}
set2 = {3, 4, 5, 6}
result_set = set1.intersection(set2)
print(result_set)  # Output: {3, 4}

Exercise 7: Difference Between Two Sets

• Create two sets: set1 = {1, 2, 3, 4, 5} and set2 = {4, 5, 6, 7}.
• Find the difference between set1 and set2 using the difference() method.
• Print the resulting set.

Example Solution:

set1 = {1, 2, 3, 4, 5}
set2 = {4, 5, 6, 7}
result_set = set1.difference(set2)
print(result_set)  # Output: {1, 2, 3}

Exercise 8: Symmetric Difference Between Two Sets

• Create two sets: set1 = {1, 2, 3, 4} and set2 = {3, 4, 5, 6}.
• Find the symmetric difference between the two sets using the symmetric_difference() method.
• Print the resulting set.

Example Solution:

set1 = {1, 2, 3, 4}
set2 = {3, 4, 5, 6}
result_set = set1.symmetric_difference(set2)
print(result_set)  # Output: {1, 2, 5, 6}

Exercise 9: Check if One Set is a Subset of Another

• Create two sets: set1 = {1, 2, 3} and set2 = {1, 2, 3, 4, 5}.
• Check if set1 is a subset of set2 using the issubset() method.
• Print True if it is a subset, otherwise print False.

Example Solution:

set1 = {1, 2, 3}
set2 = {1, 2, 3, 4, 5}
print(set1.issubset(set2))  # Output: True

Exercise 10: Check if Two Sets are Disjoint

• Create two sets: set1 = {1, 2, 3} and set2 = {4, 5, 6}.
• Check if the two sets are disjoint (i.e., have no common elements) using the isdisjoint() method.
• Print True if they are disjoint, otherwise print False.

Example Solution:

set1 = {1, 2, 3}
set2 = {4, 5, 6}
print(set1.isdisjoint(set2))  # Output: True

Exercise 11: Pop a Random Element from a Set

• Start with the set my_set = {1, 2, 3, 4, 5}.
• Use the pop() method to remove and print a random element from the set.
• Print the updated set after the element is removed.

Example Solution:

my_set = {1, 2, 3, 4, 5}
removed_element = my_set.pop()
print("Removed element:", removed_element)
print("Updated set:", my_set)

Exercise 12: Create a Set from a List

• Create a list with duplicate elements: my_list = [1, 2, 2, 3, 4, 4, 5].
• Convert the list into a set to remove the duplicates.
• Print the resulting set.

Example Solution:

my_list = [1, 2, 2, 3, 4, 4, 5]
my_set = set(my_list)
print(my_set)  # Output: {1, 2, 3, 4, 5}