Veremhasználat

Veremhasználat refers to the act of using a stack, a fundamental data structure in computer science. A stack operates on a last-in, first-out (LIFO) principle, meaning the last item added to the stack is the first one to be removed. This behavior is often compared to a stack of plates, where you can only add or remove plates from the top.

The primary operations associated with veremhasználat are push and pop. A push operation adds an element to the top of the stack, while a pop operation removes and returns the top element. Stacks also typically support a peek or top operation, which allows viewing the top element without removing it, and an isEmpty operation to check if the stack contains any elements.

Veremhasználat has numerous applications in computing. It is crucial for managing function call stacks, where each function call is pushed onto the stack and popped when the function returns. This mechanism allows programs to keep track of the execution flow and local variables. Compilers use stacks for parsing expressions and evaluating them. Undo/redo functionality in many applications is also implemented using stacks. Furthermore, stacks are employed in depth-first search algorithms and in managing backtracking in problem-solving. The LIFO nature of stacks makes them ideal for scenarios requiring a reversal of order or a temporary storage of data that needs to be retrieved in the reverse order of its insertion.