Write a C program that counts the number of digits in a given positive integer using a while loop.

The program should prompt the user to enter a positive integer and then the program should count the number of digits in it using a while loop. Once done, the program should display the count on the screen.

Program requirements:

The program should prompt the user to enter a positive integer.

The input should be a positive integer $-$ if the user enters a negative number $($or zero $(0))$ display an error message and display the prompt again

You must use a while loop

The program should display the count of digits as the output $-$ use a full sentence and the original input in your output