Contents:

What is data structure

Stack using array
Implementing Stack using array program blueprint
C Program to implement stack using an array

Queue using array
Implementing queue using array program blueprint
C program to implement queue using an array

Circular Queue
C Program to implement Circular queue using array

Linked List
C Program on Linked List 
Linked List: count function
Linked List: search function

Stack using linked list 
Program to implement stack using a linked list: method 1
Program to implement stack using a linked list: method 2

Queue using linked list
Queue using linked list C program