in c++

Programming Question (1) Write a code with the following specifications: In the main function create an array with constant size of 20. (1mark) Create the following functions: o fill(int a[], int size), the function should fill the array all with random numbers between 1-100 ( use rand() function) (2 marks) o min(int a[], int size) return the minimum number in the array (2 marks) o median(Int a[], int size) return the median of the numbers in the array (2 marks) o search(Int a[], int size, Int x) find and return the index of the first appearance of value x in the array. (2 marks) o sumEvenindex(int a[], int size) return the sum of the numbers that are in the Even Indices in the array. (2 marks) o sort(Int a[], int size, int asc) sort the array ascending if asc=1, and descending otherwise. (3 marks) o reverse(int a[], int size) that changes/swap the items in the array to be in reverse order. Example: if a={2,1,7,1,5} then it should become {5,1,7,1,2). (3 marks) o oddarray (int a[], int size) this function should remove all even values from the array and keeps only the odd numbers. (3 marks) Test all functions in the main