Write a recursive function (compute1(n) ) that takes one parameter and implements the following recursive definition: compute1(n) = 5 compute1(n) = compute1(n-1) + n compute1(n) = compute1 (n-2) + n...

I need help with this C++ advanced data structure task. It needs to be in .cpp file and .h file. My attempt into placing into .cpp file and .h file with the main.cpp complied into an error. I have been using the free online complier https://www.onlinegdb.com/

Extracted text: Write a recursive function (compute1(n) ) that takes one parameter and implements the following recursive definition: compute1(n) = 5 compute1(n) = compute1(n-1) + n compute1(n) = compute1 (n-2) + n if n is negative if 0 <=n><=10 if="" n="">10 Write a program to test the function.