CodeSignal.com is an algorithm testing site to help learn a new language or prepare for a technical interview. It has various modes including solving algorithms, interview practice, timed challenges, company bots, and tournaments.
The Arcade section is a large part of the static practice problems CodeSignal provides. It is a set of algorithm problems to help prep for technical interviews. This is currently made up of Intro, Databases, The Core, Python and Graphs.
- In each algorithm you are given a description to solve.
- Tests given some public tests to view which means you can see the input and desired output. Hidden tests which can not be viewed are also given and will need to be solved. You have the ability to write your own tests for specific cases or to try and guess the hidden cases.
- Gold is provided for solving challenges which can be used to help solve algorithms. If you are able to save a large amount of gold you may buy a t-shirt with it as well.