what is the answer for the 1st and 2nd challenges in the python collection class?

Hi Sum Tsui,

Unfortunately, there currently isn't a direct way to see what others have asked about challenge without using to help button. After using the help button, your question is posted with a breadcrumb list of the Topic, Course, Section, and the Challenge shown above your question. These are clickable links:

Python > Python Collections > Dictionaries > Teacher Stats

Clicking on the Teacher Stats brings up all questions asked about that challenge ("code challenge 2242")

The other alternative is to search by the name of the challenge: "Teacher Stats"

For questions on videos, there is a tab below the video showing questions asked about that video.

Here is one what to solve the first two tasks of this challenge:

# task 1
def most_classes(my_dict):
    count = 0
    for teacher, classes in my_dict.items(): 
        if len(classes) > count:
            count = len(classes)
            has_most = teacher
    return has_most
​
# task 2
def num_teachers(my_dict):
    return len(my_dict)