printf() is a built-in function.
C does not contain any instruction to display output on screen rather it uses a readymade libraty function printf() to achieve it.
For us to be able to use the printf() function, it is necessary to use #include<stdio.h> at the beginning of the program.
the general form of printf() fuction is,
printf(“<format string>”,<list of variables>);
<format string> can contain,
|%d||For taking integer value|
|%c||For taking a character|
|%s||For taking String|
|%f||For taking float and double value|
It also prints that strings on the output window what are written within its parenthesis’s quotation like (“ ”).