FAQ: Variables - Arithmetic Operators


This community-built FAQ covers the “Arithmetic Operators” exercise from the lesson “Variables”.

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This exercise can be found in the following Codecademy content:

Learn C++

FAQs on the exercise Arithmetic Operators

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This is the first lesson that contains the line return 0;. What does this mean?


Hello jjtumelty,

return 0; is because main() is a function that needs to return a -int- value, -return 0;- means that main() function returns a int with the value of zero, maybe this is difficult now but in the next topics this will be clear for you.




numbers for status codes is very common in program. 0 is very often used to indicate the function/method ran/completed successfully

i mean who doesn’t know 404 page not found? So numbers are very common to indicate success or failure (and what kind of failure), particular useful if your program grows in size.