Computer Science

Stack Operations

Understand basic stack operations.

Push, Pop, Peek – LIFO

Formula Explanation

Stack follows Last-In-First-Out principle.

Variables Explained

Push = insert; Pop = remove; Peek = view top.

Solved Example

What is the order of removal from a stack?
Reverse of insertion order (LIFO).

Exam Tip

Stack is used in recursion and expression evaluation.