![]() Why do we need Data Structures?Īs data structures are used to store data in an organized form, and since data is the most crucial entity in computer science, the true worth of data structures is clear. Your goal is to understand data structures so that you can pick the data structure that’s most optimal for the problem at hand. This “layout” allows a data structure to be efficient in some operations and inefficient in others. Simply put, a data structure is a container that stores data in a specific layout. Let’s start with understanding the basics. Learning data structures is essential even if you’re just trying to get better at your current job. Sometimes interview questions explicitly mention a data structure, for example, “given a binary tree.” Other times it’s implicit, like “we want to track the number of books associated with each author.” It doesn’t matter whether you have just graduated (from a university or coding bootcamp), or you have decades of experience. That’s why software engineering candidates have to demonstrate their understanding of data structures along with their applications.Īlmost all problems require the candidate to demonstrate a deep understanding of data structures. Niklaus Wirth, a Swiss computer scientist, wrote a book in 1976 titled Algorithms + Data Structures = Programs.Ĥ0+ years later, that equation still holds true.
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