Lets All Learn C!!!!!!

#include <stdio.h>: This is the standard I/O library used in computing. It allows text to be displayed on screen, and receive input from the keyboard. C has quite a few libraries available, making various processes even simpler for you to use in your programs.

Probably be a good idea to define what a library is.

int main(): while int is declaring that a new function is about to start.

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All C programs must have a function named main, as it's the first function to be run when your program is started.

Not necessarily.