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Stacks are not only the preferred data structure for bottom up parsing, they are the only data structure suitable for bottom up parsing.
Bottom-up parsing is usually referred to as depth-first search. Top-down parsing is referred to as breadth-first search. The two are exactly the same in terms of implementation, the difference is only in the structure used to store information collated from the previous iterations. With top-down parsing you use a queue, pushing to the back and popping from the front. With bottom-up parsing you use a stack, pushing to and popping from the back.
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What does it mean that the stack is a LIFO structure?
LIFO stands for Last In First Out. It basically means that the most recent piece of data added to a list, will be the first piece that is taken off. It is often compared to a stack of plates. When you have a plate to add to the the stack, you put it on the top, not in the middle or at the bottom of the stack. If you need a plate you usually take it from the top, not the middle or bottom. So the most recent plate on the top is the first that will be taken off when one is needed.
Explain The merits of using a deque to implement a stack in data structure?
Explain The merits of using a deque to implement a stack in data structure
What is the resource requirement of stack in a data structure?
no answer
Can stack be called fifo data structure?
No. A stack is a LIFO (Last In First Out) data structure.A queue is a FIFO (First In First Out) data structure.
What are some common operations that can be performed on a stack data structure?
Common operations that can be performed on a stack data structure include push (adding an element to the top of the stack), pop (removing the top element from the stack), peek (viewing the top element without removing it), and isEmpty (checking if the stack is empty).
What layer is always at the bottom of the stack in Photoshop?
Background.
What is a stack in data structure?
A stack in Data structure is a LIFO structure. Last In First Out. Think of it as a stack of books or a stack of trays in a cafeteria line. when you are in a line in a cafeteria you take the tray that is on the top and the worker place new washed ones also on the top. So deletion and insertion all done at one end, it is called the top of the stack. In Computer Programming Stacks are so important and have too many applications such as the evaluation of Mathematical expressions. Also note that a stack is unlike a queue structure. Queue data structure is FIFO. First In First Out as in a bank teller line.
How is the old stack pointer value recovered on a function return?
If your stack grows bottom-up, it's decremented when you leave a function; if the stack grows top-down, the stack pointer is incremented.
To what does the term grana refer?
A stack of thylakoids inside the cholorplast of a plant cell. A stack of thylakoid membrane structure
How can I efficiently use a stack to sort elements in a data structure?
To efficiently use a stack to sort elements in a data structure, you can follow these steps: Push all elements into the stack. Create a temporary stack to store the sorted elements. While the original stack is not empty, pop an element from the original stack. Compare the popped element with the top element of the temporary stack. If the popped element is greater, push it onto the temporary stack. If the popped element is smaller, keep popping elements from the temporary stack and pushing them back onto the original stack until the temporary stack is empty or the top element is greater. Repeat steps 3-6 until the original stack is empty. The elements in the temporary stack will now be sorted in ascending order. By following these steps, you can efficiently use a stack to sort elements in a data structure.
Why is the queue data structure called a LIFO?
It isn't! A queue is a FIFO structure, not a LIFO structure. FIFO is an acronym for First-In, First-Out and is analogous with first come, first served (as per a queue of people waiting to be served). LIFO is an acronym for Last-In, First-Out, which is analogous with a stack structure, where the last element added is always placed on top of the stack while the top-most element of the stack is always the first to be removed from the stack.
What solid shape can stack?
Cubes are solid shapes that can stack neatly on top of each other, creating a stable structure.
