← DSA Lab
Stacks & Queues
Visualize Stack (LIFO - Last In First Out) and Queue (FIFO - First In First Out) operations.
Stack (LIFO)
Queue (FIFO)
Enter a value and select an operation.
Complexity
| Data Structure | Insertion | Deletion | Access (Top/Front) |
|---|---|---|---|
| Stack | O(1) Push | O(1) Pop | O(1) |
| Queue | O(1) Enqueue | O(1) Dequeue | O(1) |
