Write a method that returns the square or the cube of a positive integer 'num'. The string 'power' will either contain "squared", "cubed", or anything else. If it contains "squared" return the square of 'num'. If it contains "cubed" return the cube of 'num'. If it contains anything else, return 0 as an error code. NOTE: You are NOT allowed to use maps, functional programming, or array lists. You are NOT allowed to have any nested loops or nested recursion. You are NOT allowed to make a giant array that is way longer than the input parameter arrays. Kyle, you must resist your natural impulses!