→ Part 4: Order Up! Complete the function order lunches, which takes two arguments: • stock: A dictionary that contains menu items available for purchase at a restaurant. The dictionary maps each item's name to an integer that represents how many of each item is available (e.g., * soda”: 4). • orders: A list of strings representing items that patrons at the restaurant have ordered. The list might include items not available for purchase. The function iterates over the orders list, treating each string in the list as a key in the stock dictionary. If the key is present in the dictionary, the function decrements the value associated with the key (provided that doing so would not make the value negative). The function also returns the total number of valid items purchased (as an integer). The function simply ignores strings in orders that are not valid keys in stock. As an example, suppose stock were the dictionary {soda': 0, burger: 3, 'chips": 5, "pizza': 7} and orders were [soda, sandwich”, burger", 'pizza', 'pizza', burger', 'pretzels'] The function would update stock to {soda': 0, burger': 1, chips": 5, "pizza': 5} and return 4.

→ Part 4: Order Up! Complete the function order lunches, which takes two arguments: • stock: A dictionary that contains menu items available for purchase at a restaurant. The dictionary maps each item's name to an integer that represents how many of each item is available (e.g., * soda”: 4). • orders: A list of strings representing items that patrons at the restaurant have ordered. The list might include items not available for purchase. The function iterates over the orders list, treating each string in the list as a key in the stock dictionary. If the key is present in the dictionary, the function decrements the value associated with the key (provided that doing so would not make the value negative). The function also returns the total number of valid items purchased (as an integer). The function simply ignores strings in orders that are not valid keys in stock. As an example, suppose stock were the dictionary {soda': 0, burger: 3, 'chips": 5, "pizza': 7} and orders were [soda, sandwich”, burger", 'pizza', 'pizza', burger', 'pretzels'] The function would update stock to {soda': 0, burger': 1, chips": 5, "pizza': 5} and return 4.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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