How would I write a Quicksort algorithm that takes in a C string array, its size and a boolean variable which indicates to whether sort it by length or by alphabetical order.

Only libraries that can be used are stdbool.h and string.h

For the boolean part, if the boolean is true then it will sort it by length which is

Apple, Banana, Carrot,

If not then, it would be

Apple, Carrot, Banana.