Return Minimal Subset of Strings

Return Minimal Subset of Strings Given an array of strings, return a minimal subset such that no other strings are prefixes of the subset. Example: Input: ["foo", "food", "foodie", "bar", "baz"] Output: ["foo","bar","baz"] Constraints: String lengths: [0, 20] Array length: [0, 50] All strings consist of lowercase letters and are unique. Example Input 5 foo food foodie bar baz