Combination of Ingredients

You are making a dish that requires a combination of ingredients. Given a list of ingredient names and an integer k, output all unique combinations of k ingredients from the list. Input Format: - The first line contains an integer n (1 <= n <= 20), the number of ingredients. - The second line contains n strings representing the names of the ingredients. - The third line contains an integer k (1 <= k <= n), the number of ingredients to choose. Output Format: - Print each combination of ingredients in a new line, sorted alphabetically. Example: Input: 4 salt pepper basil oregano 2 Output: salt basil salt oregano pepper basil pepper oregano basil oregano