For my assignment... my teacher told me to complete a program by adding function declarations, function implementations and variable definitions in the main program. I need to know exactly what are these three things... thanx

As the description of this forum says, no one on this site will do your work for you. You should have a textbook that describes these things. So without giving you answers, I'll describe each in a few words.

function declaration: something that tells the compiler of the existence of a function, the code of which may or may not be along side the declaration

function implementation: the actual code which makes up the function

variable definitions: something that tells the compiler that a certain "thing" is a variable, and that it should allocate memory for the variable

Good luck.

- taubz

Oh... i wasnt expecting the answers.... i just wanted a visual example... for instance.... int him (int him1, int him2).... i needed sumthing like that... but thanx

A function declaration is also called a prototype. They goe below your includes and above the main function. They consist of the return type, the function name, and the parameter types and (optionally) names. A function implementation is simply writing the function. Variable definitions are simply declaring variables, you don't get much easier than that...