$13\mathrm{.}10$ LAB: Count the digits

Write a recursive function called DigitCount$()$ that takes a non$-$negative integer as a parameter and returns the number of digits in the integer. Hint: The digit count increases by $1$ whenever the input number is divided by $10.$

Ex: If the input is:

$345$

the function DigitCount$()$ returns and the program outputs:

$3$

#include

using namespace std;

$/*$ TODO: Write recursive DigitCount$()$ function here. $*/$

int main$()\{$

int num;

int digits;

cin $>>$ num;

digits $=$ DigitCount$($num$)$;

cout $<<$ digits $<<$ endl;

return $0$;

$\}$