What is the time complexity to push or pop elements in a stack?
Table of Contents
What is the time complexity to push or pop elements in a stack?
O(1)
In stacks, The last element in a list is tracked with a pointer called top. Popping an element from a stack will take O(1) time complexity. Popping the last element in a stack will take O(n).
What is stack explain push and pop conditions of stack using array and using link list?
Stack Data Structure (Introduction and Program)
- Push: Adds an item in the stack. If the stack is full, then it is said to be an Overflow condition.
- Pop: Removes an item from the stack.
- Peek or Top: Returns the top element of the stack.
- isEmpty: Returns true if the stack is empty, else false.
What is one advantage of using a linked list to implement a stack rather than an array What is one disadvantage?
Arrays allow random access and require less memory per element (do not need space for pointers) while lacking efficiency for insertion/deletion operations and memory allocation. On the contrary, linked lists are dynamic and have faster insertion/deletion time complexities.
What is the time complexity of a pop operation when the stack is implemented using an array?
Discussion Forum
| Que. | What is the time complexity of pop() operation when the stack is implemented using an array? |
|---|---|
| b. | O(n) |
| c. | O(logn) |
| d. | O(nlogn) |
| Answer:O(1) |
What is push and pop in stack?
In computer science, a stack is an abstract data type that serves as a collection of elements, with two main principal operations: Push, which adds an element to the collection, and. Pop, which removes the most recently added element that was not yet removed.
Why are linked lists useful?
Linked lists offer some important advantages over other linear data structures. Unlike arrays, they are a dynamic data structure, resizable at run-time. Also, the insertion and deletion operations are efficient and easily implemented.