"""
[Homework]
1. Write a Python program to check if a dictionary is empty or not.

2. Write a Python program to generate and print a dictionary that contains a number (between 1 and n) in the form (x, x*x)
Requirement
using dictionary comprehension technique.
user input the number of items for this dictionary
e.g. User inputs 5
Expected Output : {1: 1, 3: 9, 5: 25, 7: 49, 9: 81}

e.g. User inputs 3
Expected Output : {1: 1, 3: 9, 5: 25}

3. Write a Python program to get the maximum and minimum value in a dictionary

4. review the code of demos in class
"""