Create a generic function that collects all elements of a vector that satisfy a given unary callback function. This callback function accepts a T value and returns a Boolean value that indicates...

Create a generic function that collects all elements of a vector that satisfy a given unary callback function. This callback function accepts a T value and returns a Boolean value that indicates whether the element should be part of the function’s output. The resulting elements are to be collected and returned in another vector. Use this higher-order function to gather all numbers greater than a user-provided value from a sequence of integers, all capital letters from a sequence of characters, and all palindromes from a sequence of strings. A palindrome is a string that reads the same backward and forward (such as, for example, "racecar", "noon", or "kayak").