while.c

/*
John Coder
July 3, 2024
*/

#include <stdio.h>
int main(void)
{
      int blanks = 0, digits = 0, letters = 0, others = 0;
      int c;     // use for int value of character
      while( (c = getchar() )  != EOF  )
      {
            if (c == ' ' )
               ++blanks;
            else if  ( c >= '0'   &&  c <= '9')
               ++digits;
            else if  ( c >= 'a'   &&  c <= 'z'  ||  c >= 'A'  &&  c<= 'z')
               ++letters;
            else
               ++others;
      };
       printf("  blanks = %d, digits = %d, letters = %d, ",
                    blanks, digits, letters);
       printf("  others = %d\n\n", others);
      return 0;
};