Following the  previous post about Queues, In this post i publish a simple modular stack written in C which can be used either by assigning a static space for the elements of a dynamic one (malloc etc).

In computer science, a stack is an abstract data type that serves as a collection of elements, with two principal operations:

  • push, which adds an element to the collection, and
  • pop, which removes the most recently added element that was not yet removed.

The order in which elements come off a stack gives rise to its alternative name, LIFO (last in, first out). Additionally, a peek operation may give access to the top without modifying the stack.

Usage:

 

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