Weighted random selection, ou are given a list of recipes. Each recipe may require some ingredients, and some of those ingredients might themselves be other recipes. You are also given a list of supplies that you already have. A recipe can be prepared only if all its required ingredients are available — either from the initial supplies or by preparing other recipes. Your task is to return all the recipes that can eventually be prepared. Example: Recipes = ["bread", "sandwich", "burger"] Ingredients = [ ["flour", "water"], // bread ["bread", "ham"], // sandwich ["sandwich", "bread"] // burger ] Supplies = ["flour", "water", "ham"] Output: ["bread", "sandwich", "burger"