The stack is one of the most important data structures in computer science. A stack is a last-in first-out data structure (LIFO).

Stack Overview

Stack follows the rule of last in first out rule. Mainly two action are performed by stack one is push and other is pop. The last thing which we placed or push on stack is the first thing we can get when we pop. A stack is a list of element with insertion and deletion at one end only.

Below depict the operational behaviors of stack. You can see one thing that push and pop operation is done at one end and whatever element we keep on stack is shown at the top of stack.

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