Develop a function that takes a non-negative integer n as a parameter and returns a non-negative integer containing the sum of n’s digits. For example, if the input parameter n was 17239 then the output of this function should be 1 + 7 + 2 + 3 + 9 = 22 Develop a function that takes an array of integers and its size as two parameters and does the following: For elements of the array with odd indices, the function should reverse their sign (e. g., if the element was 37, it becomes -37; if the element of the array was -5, it becomes 5). For elements with even indices, the function sets them to zero. All in C and C++

Develop the program incrementally: a) start by reading and displaying each line of the input file to make sure you are reading the data set correctly. b) use the split string method to extract information from each line into a list. print the list to prove that this step is working correctly. d) convert the exam scores to type int and calculate the student’s average. display those items to prove this step is working correctly. e) create a tuple containing the six items for each student (name, exam scores, exam mean). display the tuples to prove this step is working correctly. (optionally, you may want to have the exam scores in a list so your tuple is (name, scores_list, f) append each tuple to a list. display the list to prove this step is working correctly. g) use the sort list method to re-order the tuples in the list. display the list to prove this step is working correctly. h) use a for statement to display the contents of the list as a table (with appropriate formatting). i) use a for statement to calculate the average of all scores on exam #1, then display the results. note that you could have calculated this average within the first loop, but we are explicitly requiring you to do this calculation by looping though your list of tuples. j) add the logic to calculate the average of all scores on exam #2, then display the results.