Donut Stack
"Stack is a fundamental data structure that follows the Last In, First Out (LIFO) principle, meaning the last element added is the first one removed. Common operations include push (adding an element), pop (removing the top element), and peek (viewing the top element without removal). Stacks are widely used in programming for tasks like function call management, expression evaluation, and undo mechanisms. They can be implemented using arrays or linked lists, with each method having its own advantages. Understanding stacks is essential for algorithms, memory management, and solving problems like balancing parentheses or backtracking. Efficient and easy to grasp, stacks are a key concept in computer science and software development, forming the backbone of many computational processes." (120 words)
