MCQ Detailed View

In a stack data structure, the Push operation is used to insert or add a new element onto the top of the stack. A stack works on the principle of LIFO—Last In, First Out—which means the most recently added element is the first one to be removed.

When you perform a Push operation, a new value is placed at the top of the stack. This is essential for storing data in the correct order. For example, in programming problems involving undo features, expression evaluations, or recursive calls, stacks and the Push operation are commonly used.