The stack data structure is specifically designed for implementing the LIFO mechanism, where the last element added to the stack is the first one to be removed. This property is essential for various operations like undo functionality in text editors, parsing expressions in compilers, or tracking function calls in recursion. In a stack, two primary operations are supported: push (to add an element) and pop (to remove an element). These operations are efficient, with a time complexity of O(1)O(1)O(1). A stack can be implemented using either an array or a linked list, but its abstract behavior remains consistent across implementations. Why Other Options Are Incorrect :
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