What is the difference between PUSH and POP?

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PUSH and POP operations specify how data is stored and retrieved in a stack.

PUSH: PUSH specifies that data is being “inserted” into the stack.

POP: POP specifies data retrieval. It means that data is being deleted from the stack.

In the context of data structures, PUSH and POP are fundamental operations typically associated with stack data structures. Here’s a breakdown of their differences:

  1. PUSH: This operation is used to add an element onto the top of the stack. When you push an element onto a stack, it gets placed at the top of the stack, becoming the new top element. This operation increases the size of the stack.
  2. POP: This operation is used to remove the top element from the stack. When you pop an element from a stack, you remove the element that is currently at the top of the stack. This operation decreases the size of the stack.

In summary, PUSH adds an element to the top of the stack, while POP removes an element from the top of the stack. These operations are commonly used in stack-based algorithms and data structures to manage data in a Last-In, First-Out (LIFO) manner.