Interview Basics: Multidimensional Arrays

Multidimensional Arrays

Did you read last week’s article on static vs dynamic arrays? If not, catch up now! This week we’re continuing the arrays theme and discussing multidimensional arrays. This is another data structure that you absolutely have to know to succeed in technical interviews, which is why several of our array questions in Interview Practice feature them. Multidimensional Array Basics What makes a multidimensional array different from a plain old array? And just what is a multidimensional array, anyway?  Basically, a

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Interview Basics: Reverse a Linked List

Reversing a linked list is a very common task in technical interviews. That’s why we devote a whole section of Interview Practice to them! Being able to solve this question easily is a great way to demonstrate to an interviewer that you’re a capable, competent programmer. Let’s discuss two different ways of reversing the direction of a linked list: recursively and iteratively.Linked list refresher A linked list can be modeled by Node objects, where each node stores a value and

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Interview Practice: Graphs, Advanced Trees & RegEx

New Interview Practice Topics: 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 in Interview Practice.  Why are these topics so important to know for technical interviews? Read on for a brief introduction to each concept! Graphs A graph is an abstract data structure composed of nodes and the edges between nodes. Graphs are a useful way of

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Ace Your Next Interview With CodeFights

Ace your next technical interview!

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 gauge aptitude, interest, and intelligence. So the stakes are really high, and you need to do everything you can to give yourself a competitive edge. But it can be hard to know what exactly to study. There’s so much information out there, and sometimes it

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Do you need to prepare for technical interviews?

prepare for technical interviews

If you’re already working as a software engineer, you might think that you don’t need to do any preparation for your next technical interview. Maybe you write C++ that’s pure poetry, or perhaps your SQL queries are so efficient that they make grown men weep. So when you’re looking for a new job, it’s easy to fall into the trap of assuming that you’re ready for interviews right away – no prep needed. But are you? Sidebar: If you’re not working

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CodeFights Solves It: chessQueen

Adobe technical interview question solution

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 a standard 8 × 8 chess board, which spaces would be safe from being attacked by the queen? But as with any “easy” technical interview question, it’s imperative that you think it through fully, watch out for potential traps, and be able to explain your

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CodeFights Solves It: goodStringsCount

programming jobs technical interview problem solution

Our Interview Practice challenge this week is goodStringsCount, a combinatorics problem. As the name suggests, combinatorics deals with combinations of objects that belong to finite sets, and it’s one of those topics that come up a lot in technical interviews. This specific coding problem is from Apple, which makes sense since they’re known for asking combinatorics questions in their technical interviews! If this isn’t your first CodeFights Solves It rodeo, I bet you know what I’m going to ask next:

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Interview Practice Task of the Week

technical interviews practice challenge of the week

Have you been using our Interview Practice module to prepare for technical interviews? If not, you definitely should be! Interview Practice has over 100 questions that get asked by top companies during real interviews. (Which companies, you ask? Oh, you know. Just lil’ companies like Apple, Facebook, Google, Microsoft, Twitter, and more.) The topics are ones that you’ll definitely encounter – coding patterns, algorithms, and data structures. You need to be strong these topics in order to do well in technical interviews,

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CodeFights Solves It, Interview Practice Edition: groupsOfAnagrams

Interview question: Find the groups of anagrams from an array.

This week’s featured Interview Practice challenge was groupsOfAnagrams. It’s a Twitter interview question, and they’re known for their difficult technical interviews! If you haven’t solved it yet, go ahead and do that first, then head back here and we’ll discuss how to get to a solution with a good runtime. …Done? Okay, let’s dig into this coding challenge! The technical interview challenge You are given a list of n words. Two words are grouped together if they are anagrams of

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Make Your Engineering Resume Stand Out

Make your engineering resume stand out

Love ’em or hate ’em (and we’re guessing you don’t love them), resumes are still part of the typical job search process. But putting your resume together can feel like one of the hardest parts of the whole thing! What should you include? What should you leave out? And do you need to include your home address? (Hint: City and state? Sure. Street address? NO.) A typical engineering job posting can generate hundreds of applications. Only a relatively small percentage

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