Data Structures & Algorithms — Explained

Arrays

If you had to store a thousand separate high scores in a game, would you create a thousand individual variables? That would turn your code into an absolute nightmare.

Instead, computers use an array: a single, contiguous block of memory carved up into equal-sized slots. Think of it like a perfectly organized egg carton, holding multiple items under one single name.

To find a specific slot, we use an index. But here is the strange part: computers almost always start counting from zero, not one.