How do online judges work?

Question

I would like to know how online terminals(ide) works, and what are the process involved in it?

Answer 1

It takes your code, compiles it, checks for compilation errors, executes your code by giving some hidden inputs and collecting the output your code gave, checks for runtime errors and finally matches your output with their hidden test outputs!

Answer 2

Thanks but I need to know about
1)how it takes my file in server
2) how it runs in server with 'hidden' inputs
3)How it can run multiple languages?
4) What are technologies behind it?

In a simple way if I were to build an online ide, how can I do it, What are the technologies I need to learn?😇 #cheers #happy_coding

Answer 3

Saurabh S Naik then you should definitely look at this 👇
https://www.quora.com/How-do-I-implement-an-online-judge-or-autograder-that-both-can-be-completed-in-1%E2%80%932-months-and-that-is-similar-to-CodeChef-TopCoder-etc-from-scratch

Answer 4

Thanks..🙌