vkgainz's blog

By vkgainz, history, 3 months ago, In English

Good luck to everyone! Comment if you're taking tomorrow!

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By vkgainz, history, 8 months ago, In English

Hi,

I was wondering where codejam problems from 2015 and before could be found. I know google changed their codejam website recently, and is still in the process of uploading all the old problems to the new website, and I think they might have taken the old archive down (or, at least, I can't find it).

Does anyone know a source where I can find the pre 2015 codejam problems?

For reference, the link I'm looking at right now is here: https://codingcompetitions.withgoogle.com/codejam/archive. As you can see, only post 2016 problems have been added.

Also, Kickstart has the same issue, so if anyone has access to those, that would be greatly appreciated.

Thanks!

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By vkgainz, history, 8 months ago, In English

Hello Everyone,

Are the seeds for the contests on CF-Predictor calculated correctly?

On a recent contest: many users (such as me) ended up getting negative delta even though we got a lower rank than our seed (meaning we did better than "expected"), which is contradictory.

Does CF-Predictor calculate the seeds based on registered participants and not those who actually took the contest (thus making it a bit inaccurate) or are rating changes a bit off for codeforces?

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By vkgainz, history, 8 months ago, In English

Hi Everyone,

Pardon me if this is the wrong place to post; I'm new with blogs and all, but felt like I could probably put it here.

I know there are lots of CF predictors out there that give you your expected delta based on your rank and seed in the contest. Has anyone made a predictor that would tell you what rank you would need to gain a certain delta?

Basically, is there any app that lets me input the participants of a contest to get my seed and a given delta value and outputs a predicted rank? For example, if I wanted +50 delta on the next contest, I could put those two parameters in and it would give me the expected rank I need to get that in contest (around ~400 or something).

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