Week 2 Readability Letter Count

Question

I am able to figure out the number of letters and spaces (the answer is 300) with the code below. How do I write a command to exclude the spaces? A hint would be appreciated. Thank you.

'''

#include <stdio.h>
#include <cs50.h>
#include <string.h>
#include <ctype.h>

int main(void)
{
// Prompt for text from the user
string s = get_string("Input: ");

// Count number of characters up until '\0'
    int n = 0;
    while (s[n] != '\0')
    {
        n++;
    }
    printf("%i\n", n);
}

'''

Answer 1

Hint: The function isalpha(), along with it's cousins like isspace() and ispunct(), etc., are your friends. ;-)