Initially, we set a Peek pointer to keep track of the topmost element of the stack. In C, the stack data structure works using the LIFO (Last In First Out) approach. In C, a dynamic stack is implemented using a Linked List, as linked lists are dynamic data structures. In C, a static stack is implemented using an Array, as arrays are static.Ī Dynamic Stack is a stack data structure whose capacity (maximum elements that can be stored) increases or decreases in runtime, based on the operations (push or pop) performed on it. If a static stack is full and does not have any space remaining for another element to be pushed to it, it is then called to be in an Overflow State. It can contain a limited number of elements. There are two types of Stack data structure: Static and Dynamic Static StackĪ Static Stack (also known as a bounded stack) has a bounded capacity. A stack of coins or a stack of books can also be a real-life example of the stack data structure. An example of this data structure would be a stack of plates: We can only add a plate to the top of the stack and take a plate from the top of the stack. The name "Stack" for this data structure comes from the analogy to a set of physical items stacked on top of each other. In an array, we can access any of its elements using indexing, but we can only access the top most element in a stack. It is a sequential data type, unlike an array. It is a LIFO (Last In First Out) data structure, which means that we can insert or remove an item at the top of the stack only. In C, the Stack data structure is an ordered, linear sequence of items. The top of the stack is returned using the peek operation.Īn abstract data type has some associated operations (like Push and Pop in stack), while its representation remains hidden. Insertion and deletion happen on the same end (top) in a Stack. Introduction to Stack in CĪ Stack is an abstract linear data structure serving as a collection of elements that are inserted (push operation) and removed (pop operation) according to the Last in First Out (LIFO) approach. A Stack can be implemented using an Array or Linked List. In C, a Stack is a linear data structure that follows the LIFO (Last In First Out) approach to perform a series of basic operations like push, pop, peek, and traverse.
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