Write a function that uses function random0 to generate a random value in the range low, high), where low and high are passed as calling arguments. make random0 a private function called y your new function.
Did you see the very first example in the help for the rand() function. It's your answer. Just take that example and put it inside a function called "random0" and you're done. I have no idea what "y" is or how you can have a function called both random0 and y at the same time.