This coding should be done in C please! If you could also help with the extra credit as a seperate code that would be even more awesome! Thank you!

2) Number of digits and sum of digits of an input positive integer (50 points) Write a C program, num sum.c, to ask the user for a positive integer number (assume that the input is greater than 0). Your program must print out the number of digits and sum of the digits. For example, if the user inputs 1991, you should output something like "The number has 4 digit(s), sum of which is 20". The calculations must happen in a function called num_sum) which has the following declaration. void num sum(int n, int *num, int *sum); Your program must: Implement the above function where all the calculations happen. Notice that we need two values from the calculations, but C functions can return only a single value. Thus we use 1