Check if user input into an array is too long?

Question

I am getting the user to input 4 numbers. They can be input: 1 2 3 4 or 1234 or 1 2 34 , etc. I am currently using

int array[4];
scanf(\"%1x%1x%1x%1x\", &ar         


        

Answer 1

What you are trying to get is 4 digits with or without spaces between them. For that, you can take a string as input and then check that string character by character and count the number of digits(and spaces and other characters) in the string and perform the desired action/ display the required message.