Hello, Codeforces!

Check the graph preview tool — Graph Editor

Uses Simulated Annealing algorithm; Shows good results on planar and almost planar graphs.

Features:

• easy input copy/paste;

• random graph generator;

• highlighting adjacent vertices on hover;

• save as png.

update 07.2023:

• directed edges

• weighted edges

• 0-1 indexed graphs

• light theme! (all previous were dark)

Please leave your feedback and links to similar tools in the comments below.

At the moment I know about these:

• CS Academy Graph Editor

• miska924 DrawGraphJS: Try here; or Check github page

Hello, Codeforces!

I'm new on AtCoder and was interested, what rating would I normally get there after participating in CodeForces rounds, and how does rating on these two sites correlate.

Of course, there is a correlation ;)

Link to some plots and dependencies:

Rating correlation plots

preview:

And now you can get a prediction for the site you are new to.

Here is CodeForces <-> AtCoder rating converter:

Rating converter

preview:

You can send any suggestions to this e-mail:

[email protected]