1. The document discusses various input/output functions in C including printf(), scanf(), putchar(), gets(), and puts(). It provides examples of using format specifiers like %d, %f, %c with printf and scanf.
2. Functions like putchar() and gets() are used to output/input single characters and strings. Examples demonstrate using gets() to accept user input and puts() to output strings.
3. The last section provides more complex examples combining multiple functions like printf(), scanf(), gets() to perform input/output operations and manipulate strings.
52. 3.5
include<stdio.h>
intmain(){
charany_char;
printf("Please type a character: ");
scanf("c%",&any_char);
printf("Thank you, your character are
%c",any_char);
return0;
}