Question by Gaurav Singh

[GAURAV-SINGH-07]

• function/type problem - Calculate parking bill based on day, vehicle type, time of day, and number of hours with specific charge conditions.
• data processing - Write a function to process student scores and return average, highest, and lowest scores for each subject.
• data processing I/O - Process a list of student grades to compute and output the average, highest, and lowest grade for each student.
• data types - Write a function that reverses the keys and values of a dictionary, assuming values are unique and hashable.