ocr: The standard - header fille a stdio.h" contains the function prototype for "printf()".It also contains the macro definitions for H, - getchar0" and "putchar()", which will be used to read characters from the keyboard and to write characters to the screen, respectively. The standard header file " ctype.h" contains the macro detinition for "isalpha()", which will be used to determine ifa character "is alphabetic, H that is, ifit is a lower- or uppercase letter.
