Stack

When talking about Data Structures and algorithms associated with them, we need to talk about Stacks. A stack is a linear data structure, which follows a particular order in which operations can be performed. These operations may be FILO (First In Last Out) or LIFO(Last In First Out). Stacks can be implemented using arrays and linked lists manually, while languages like C++, Java, and Python have built-in classes, STLs, and libraries to implement them. In this category, we will look into all operations and problems related to Stacks.