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Python: Diet

Python: Diet

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Python: Diet

Meow' eats a lot, and she loves to know in gory detail what she eats in every meal. As her assistant, you are going to implement a function mealCal(meal: list[str], recipes: list[str], db: list[str]) -> float that operates as follows: • The parameter meal is a list of strings, listing the dishes she is having. There may be redundant items: if Meow likes it enough, she may consume multiple servings of the same dish. For example, meal ["T-Bone", "T-Bone", "Green Salad1"]. • The parameter recipes is a list of strings, representing a "book" of recipes. For example", recipes = ["Pork Stew:Cabbage*5,Carrot*1,Fatty Pork*10", "Green Salad1:Cabbage*10, Carrot*2,Pineapple*5", "T-Bone:Carrot*2,Steak Meat*1"] Each item is a string indicating the name of the dish, followed by a colon, then a comma-separated list of ingredient names together with their quantities. In the example presented, the item "T-Bone:Carrot*2,Steak Meat*1"
Transcribed Image Text:Meow' eats a lot, and she loves to know in gory detail what she eats in every meal. As her assistant, you are going to implement a function mealCal(meal: list[str], recipes: list[str], db: list[str]) -> float that operates as follows: • The parameter meal is a list of strings, listing the dishes she is having. There may be redundant items: if Meow likes it enough, she may consume multiple servings of the same dish. For example, meal ["T-Bone", "T-Bone", "Green Salad1"]. • The parameter recipes is a list of strings, representing a "book" of recipes. For example", recipes = ["Pork Stew:Cabbage*5,Carrot*1,Fatty Pork*10", "Green Salad1:Cabbage*10, Carrot*2,Pineapple*5", "T-Bone:Carrot*2,Steak Meat*1"] Each item is a string indicating the name of the dish, followed by a colon, then a comma-separated list of ingredient names together with their quantities. In the example presented, the item "T-Bone:Carrot*2,Steak Meat*1"
indicates that the dish "T-Bone" uses 2 units of Carrot and 1 unit of Steak Meat. • The parameter db is a list of strings, representing a database of how much carbohydrate, protein, and fat each ingredient contains. Each item is listed as the ingredient's name, followed by a colon, and then three comma-separated numbers (int or float) denoting, respectively, the amounts of carb, protein, and fat in grams. Here is an example: ["Cabbage:4,2 , 0", "Carrot:9,1,5", "Fatty Pork:431,1,5", "Pineapple:7,1,0", "Steak Meat:5,20,10", "Rabbit Meat:7,2,20"]. db As a specific example, the entry for Cabbage indicates that 1 unit of "Cabbage" has 4g of carbohy- drate, 3g of protein, and 0g of fat. • The function then returns the amount of calories resulted from eating this meal. Remember that of carbohydrate yields 4 calories. Each gram of protein yields 4 calories. Each gram of fat yields 9 calories. Each gram To give a complete example, plugging in the sample combination just described into mealCal, we have that mealCal(meal, recipes, db) computes the following: First, we derive the amount of calories Meow gets from a T-Bone dish. This dish has 2 carrots and 1 unit of steak meat, so that's (9·4+1·4+5•9) × 2 = 85 × 2 = 170 calories from carrots and 5.4+ 20·4+ 10.9 = 190 calories from the meat. Hence, this dish has 170+ 190 = 360 calories. - Then, we derive the amount of calories Meow gets from her other T-Bone dish. The amount is the same: 360 calories. - Then, we derive the amount of calories Meow gets from her salad dish: (4 ·4+2·4) × 10+ (9. 4+1.4+5.9) × 2+ (7 ·4+ 1·4+0•9) × 5 = 240+ 170+ 160 = 570. Hence, mealCal, in this case, will return 1290.0. Remarks: • Your answers may be floating-point numbers; we'll accept any answers within 10-5 of our model answers. • The input ensures: (1) every dish in Meow's meal exists in the recipe; and (2) every ingredient used exists in the db.
Transcribed Image Text:indicates that the dish "T-Bone" uses 2 units of Carrot and 1 unit of Steak Meat. • The parameter db is a list of strings, representing a database of how much carbohydrate, protein, and fat each ingredient contains. Each item is listed as the ingredient's name, followed by a colon, and then three comma-separated numbers (int or float) denoting, respectively, the amounts of carb, protein, and fat in grams. Here is an example: ["Cabbage:4,2 , 0", "Carrot:9,1,5", "Fatty Pork:431,1,5", "Pineapple:7,1,0", "Steak Meat:5,20,10", "Rabbit Meat:7,2,20"]. db As a specific example, the entry for Cabbage indicates that 1 unit of "Cabbage" has 4g of carbohy- drate, 3g of protein, and 0g of fat. • The function then returns the amount of calories resulted from eating this meal. Remember that of carbohydrate yields 4 calories. Each gram of protein yields 4 calories. Each gram of fat yields 9 calories. Each gram To give a complete example, plugging in the sample combination just described into mealCal, we have that mealCal(meal, recipes, db) computes the following: First, we derive the amount of calories Meow gets from a T-Bone dish. This dish has 2 carrots and 1 unit of steak meat, so that's (9·4+1·4+5•9) × 2 = 85 × 2 = 170 calories from carrots and 5.4+ 20·4+ 10.9 = 190 calories from the meat. Hence, this dish has 170+ 190 = 360 calories. - Then, we derive the amount of calories Meow gets from her other T-Bone dish. The amount is the same: 360 calories. - Then, we derive the amount of calories Meow gets from her salad dish: (4 ·4+2·4) × 10+ (9. 4+1.4+5.9) × 2+ (7 ·4+ 1·4+0•9) × 5 = 240+ 170+ 160 = 570. Hence, mealCal, in this case, will return 1290.0. Remarks: • Your answers may be floating-point numbers; we'll accept any answers within 10-5 of our model answers. • The input ensures: (1) every dish in Meow's meal exists in the recipe; and (2) every ingredient used exists in the db.
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