// EFFECTS: returns the sum of each element in list, or zero if the list is // empty int Sum(RecursiveList list) { // Implement this function. return 0; } // EFFECTS: returns the product of each element in list, or one if the list is // empty int Product(RecursiveList list) { // Implement this function. return 0; } Example Input and Output: Calling Sum() on list ( 1 2 3 4 5 ) should return 15. Calling Product() on list ( 1 2 3 4 5 ) should return 120.