Language: Python

Topic: Dictionaries

Function name : trip_planner Parameters : list of tuples Returns: dictionary with each value as a dictionary

Description: You and your friends are planning a trip to NYC! In preparation, you guys make a list together of things you want to do when you get to NYC, except its a little bit disorganized with a lot of duplicate activities. Your job is to organize the list into a more accessible dictionary.

Each element in the input list is a tuple containing the category (string), name (string), and cost (int) of the activity. The output dictionary should arrange the activities first by using their category a s keys. The assigned value of each category should be another dictionary that maps each corresponding activity name to its associated cost. If there are duplicate activities with the same category and name, their costs should all be added together.

>>> list1 = [('show', 'Shawn Mendes: the Concert', 100), ('food', 'Levain Bakery', 10000), ('sightseeing', 'Statue of Liberty', 0), ('show', 'Hamilton', 20), ('sightseeing', 'Brooklyn Bridge', 10), ('show', 'Hamilton', 70), ('food', 'Halal Guys', 5), ('show', 'Shawn Mendes: the Concert', 200)] >>> print(trip_planner(list1)) {'show': {'Shawn Mendes: the Concert': 300, 'Hamilton': 90}, 'food': {'Levain Bakery': 10000, 'Halal Guys': 5}, 'sightseeing': {'Statue of Liberty': 0, 'Brooklyn Bridge': 10}}