Top 20 Searching and Sorting Algorithms Interview Questions
Originally published by Javin Paul on July 6th 2019 Top 20 Sorting and Searching Algorithms Questions for Interviews A Collection of common coding problems from Interviews based on basic algorithms like searching, sorting, and string algorithms Hello All, If you are preparing for Programming job interviews or looking for a new job then you know that it’s not an easy process. You got to be lucky to get the call and make to the first round of interview, not just when you are a beginner but at any stage of your career. But, Yes, it is the most difficult at the beginner level when you are searching for your first job. That’s why you can’t just take your chance lightly. You got to be prepared to grab that chance and for that, you must know that is expected from you on the interview. What is asked, what topics should you prepare, etc? It’s important that you practice these Algorithms based questions because even though they seem obvious and easy, sometimes they become tricky to solve in the actual interview, especially if you have never coded them by yourself. Practising these problems before interview not only makes you familiar with them but also gives you more confidence in explaining the solution to the interviewer, which plays a very important role in your selection. It also makes you ready for any twisted questions and alternative problems like Interviewers often like to ask you to solve a particular coding problem using Recursion or Iteration. Sometime, if you use a data structure like the one I have used in finding duplicate characters on String, they will ask you to solve that problem without using the Set data structure. That’s just some common example and that’s why practice matters a lot. Btw, if you are a complete beginner in the world of Data Structure and Algorithms, then I suggest you to first go through a comprehensive Algorithm course like Data Structures and Algorithms: Deep Dive Using Java on Udemy which will not only teach you basic data structure and algorithms but also how to use them on the real world and how to solve coding problems using them. Data Structures and Algorithms: Deep Dive Using Java On the other hand, if you like to read books or prefer books over online courses then you must read a comprehensive book like Introduction to Algorithms by Thomas H. Cormen to get an understanding of common Computer Science Algorithms like Searching, Sorting, Cryptography, Graph Algorithms and some common ones like Fourier Transform. Introduction to Algorithms, 3rd Edition (The MIT Press) 20 Searching and Sorting Algorithms Questions from Coding Interviews Anyway, here is some of the frequently asked Searching and Sorting Algorithms questions from Interviews. I have linked the solution but you should try to solve the problem before looking at the solution. The purpose of this article is that you should know how to solve these problems on your own, but, yes, if you got stuck and want to compare your solution, you can see the solution. 1. Can you implement a Binary Search Algorithm? (solution)It’s easy, binary search is a divide and conquers algorithm, where the problem is divided into sub-problem and those are solved. » Read More
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