(Solved): please explain in c++ Write a recursive function called PrintNumPattern( to output the following nu ...

please explain in c++

Write a recursive function called PrintNumPattern( to output the following number pattern. Given a positive integer as input (Ex: 12), subtract another positive integer (Ex: 3) continually until a negative value is reached, and then continually add the second integer until the first integer is again reached. For this lab, do not end output with a newline. Ex. If the input is: 12 3 the output is: $\begin{array}{lllllllllll}12& 9& 6& 3& 0& -3& 0& 3& 6& 9& 12\end{array}$ $\mathrm{451754.3251632.}q\times 3zqy7$ \begin{tabular}{l|l} LAB & 15.10.1: LAB: Number pattern \\ ACTIVITY & 15. \end{tabular} $0/10$ main.cpp Load default template... \#include using namespace std; / TODO: Write recursive PrintNumPattern() function int $\mathrm{main}()\{$ int num1; int num2; cin $>>$ num1; cin $>>$ num 2 ; PrintNumPattern(num1, num2); return $\theta$; (3)