Use C++ to answer the questions in the picture.

Do not make use of any variables in your answers to this question. Use recursive functions to cause repetition when needed. All numbers will be ints a. Write a function addup (x, y) that adds up all the numbers between x and y (inclusive), and returns their sum as its result. e.g. const int a addup (2, 5); defines a to be 14 because 2+3+4+5 14 b. write a function addup-arr (R, x, y), where R 1s an array of ints. It should add up all the numbers from position x to position y in the array, and return their sum as its result e.g. const int b7, 3, 1, 6, 14, 2, 9,5 i cout