This lesson will answer the question of what an array/list is and why they're important for developers. It will give a basic explanation for the array data structure and show how it can be used.
When it comes to the full list of data structures, the Set data structure is one of my favorite topics. Even though sets are in the category of abstract data structures, you'll discover that they're quite practical. And in this guide we'll walk through a number of ways that sets can be used in real world programs.
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