$(13\%)$ Write a function void rightArrow $($int $n$; that prints a rightwards arrow $$

of length $n.$ You can assume that $n$ is even and $n6.$ The size of the arrow head shall

be half the arrow length. The following shows some example printing outputs for various

function calls. $($You may use $$ to denote a space in your answer for clarity.$)$

USE C$++$ to coding