Write a C$++$ function to search for an element in array S which is smaller than integer num by using for loop. Use integer num and array as two parameters of your function $($ int$*$ searchsmall$($int$,$ int $[$MAXELS$])$; $).$ If the element which is smaller than num is found in the array then the function should return the pointer that points to that element in the array, otherwise returning NULL. Call this function from main$()$ function and output your result.