New Interview Practice Topics: Graphs, Advanced Trees, RegEx
CodeSignal News

Interview Practice: Graphs, Advanced Trees & RegEx

We’ve just added three-brand new computer science topics to Interview Practice! Get ready to dive deep on Graphs, Trees: Advanced, and RegEx. We’ve added these topics to our Extra Credit learning plan, which covers all of the topics

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Intro to Hash Tables

Hash tables are a must-know data structure for technical interviews. They’re used to store unordered collections of (key, value)pairs, in which the key must be unique. Item lookup by key, inserting a new item, or deleting an

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Beautiful JavaScript Challenge
CodeSignal News

Join the Beautiful JavaScript Challenge!

Check out the Beautiful JavaScript challenge on CodeSignal! You must submit your solution by noon on July 26. See the Official Rules at the end of this post for more details. At CodeSignal, we heart JavaScript. A

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Ace your next technical interview!
CodeSignal News

Ace Your Next Interview With CodeSignal

You know that you need to prepare for technical interviews – right? Of course you do! Companies rely on technical interviews to weed out people who can’t cut it. And for qualified candidates, they’re used to

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houseRobber interview practice solution
CodeSignal Solves It

CodeSignal Solves It: houseRobber

This week’s Interview Practice Task of the Week is houseRobber, a technical interview question that’s been asked at LinkedIn. In this challenge, we’re asked to assist a robber in stealing from houses. Not something that

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pressingButtons technical interview question solution
CodeSignal Solves It

CodeSignal Solves It: pressingButtons

Time to call 1-800-CODEFIGHTS (that’s 1-800-2633344487)! Given a number, your job is to find all the possible strings that the number could represent on a telephone’s number pad. This week’s Interview Practice Task of the

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Adobe technical interview question solution
CodeSignal Solves It

CodeSignal Solves It: chessQueen

Our latest Interview Practice Task of the Week was chessQueen, which has been asked in technical interviews at Adobe. This question might seem fairly easy at first: Given the location of a queen piece on

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Job Search

Make Your LinkedIn Profile Work For You

If you were a small business owner and someone offered you a free billboard on the freeway, you’d take it in a heartbeat, right? Free advertising in a high traffic area! That’s a no-brainer –

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