hi i want to hold a contest in my school but the problem is that i don't know how to judge the submission. I've already written a code that can say weather a code is correct or not but i don't know about the server an these things. is there any tutorial that help me?
Do you know why almost everyone thanks Mike for the polygon platform? :) The reason is they prepared contests on it.
There're some blogs on Codeforces which can help you understand how to use validators, checkers
You can also stress your solution on polygon to check if it's correct
i know i can write a checker and validator but can't i connect some computer to a server and prepare it for the contest?
you may create a group, invite users there and hold a contest there; or you can use domains, read here: https://mirror.codeforces.com/blog/entry/51787