To what extent does CodinGame provide file access for multiplayer games and contests?
I’ve been experimenting in Java, and it appears I am able to successfully create/write/read files. If I close and reopen a file between rounds of a game, I am able to successfully reopen and read the content from it. However, when I start a new game, the file no longer appears to exist.
Are files garbage collected between games? Is it possible to save information or state between games at all?
I am asking because I have been experimenting with machine learning algorithms, and would be interested in trying to apply what I’ve been learning in some of the challenges, but I would need some sort of way to maintain state between games in order to do that.
Does anyone know of a way to save state between games? Would this be a desirable feature for CodinGame to have?
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+1
I wanted to experiment something like that too.
Maybe each player could have access to its own limited size directory ?
I guess it’s to prevent hardcoding or cheat.
And also, if everyone had who knows how many files saved for each puzzle, CG will eventually need bigger servers 
But yeah, smart implementation could be nice, but it had to be smart, which doesn’t seems easy (to me at least).
I completely agree, it seems like a potential security issue and a non-trivial problem to solve. But I think it would be really cool if each player had a limited amount of file space for their program or something of the sort.
I imagine it’s also more difficult of a problem than it would appear at first glance. My guess is that our programs aren’t consistently run on the same server - so there would have to be some way of storing and retrieving our program’s files from a central server, or whichever server they were saved to originally…