1. (a) Analyze the following C++ code, and explain in details on how all the variables are updated during the execution and what the output will be. (Note: no credits if only the cout results are provided) (b) During the execution of the above program, which variables will be stored in the static memory area, what will be stored in the stack area, and what will be in the heap area? When line 30 is executed, draw a diagram to show all functions in the memory. Note: draw different copies of the recursive function to reflect the calling procedure