8m · 4min read Data Structures 8m · 4min read Stack Data StructureA stack is a linear data structure that follows the Last In First Out (LIFO) principle, meaning the last element added to the stack will be the first one to be removed. This concept can be likened to a stack of plates; you add a plate to the top of the stack, and when you need to remove a plate, you take it from the top as well. The last plate you add will also be the first one you remove.