''' 
Author name: <Your name here>
This program will count vowels in a string of vowels.
'''

def countVowels(vowel_string):
    # Create an empty dictionary
    dictionary = {}

    # Convert the string to lower case
    vowel_string = vowel_string.lower()

    # For each character in the vowel string
    for char in vowel_string:
        # If that character is in the dictionary
        if char in dictionary:
            # Increment the value by one
            dictionary[char] = dictionary[char] + 1
        else:
            # Otherwise, set the value to one
            dictionary[char] = 1

    # Return the dictionary
    return dictionary

# Input the string of vowels from the user
string_of_vowels = input("Enter a string of vowels: ")

# Call the count vowels function 
count_of_vowels = countVowels(string_of_vowels)

# Print out the resulting dictionary
print(count_of_vowels)

''' 
Author name: <Your name here>
This program will extracts unique values from a dictionary of lists
and print a new list of unique values.
'''

# The dictionary whose values are lists of grades
dictionary_of_lists = {'Student 1': [100, 98, 97, 96], 'Student 2': [88, 97, 75, 100], 'Student 3': [98,
97, 96, 77]}

# Create a new list to store the unique values.
unique_values_list = []

# For each grade list in the dictionary. 
for grade_list in dictionary_of_lists.values():
    # For each grade in the grade list.
    for grade in grade_list:
        # If the grade is not in the unique values list, then add it.
        if grade not in unique_values_list:
            # Append the grade to the list.
            unique_values_list.append(grade)
            
# Print the resulting unique values list.
print(unique_values_list)

# Create a list with some test number values.
lst = [10, 12, 32, 4]

# Create an empty dictionary.
d = {}

# Add the mean value to the dictionary using the key "Mean Value"
d["Mean Value"] = sum(lst) / len(lst)

# Add the max value to the dictionary using the key "Maximum Value"
d["Maximum Value"] = max(lst)

# Add the min value to the dictionary using the key "Minimum Value"
d["Minimum Value"] = min(lst)

# Test the code by printing the dictionary d.
print(d)