DSA Stack & Queue

1.    Stack: The operation ____() adds an element to the top of the stack.

1.    Stack: The operation ____() removes the element from the top of the stack.

Stack: The operation ____() returns the element at the top of the stack without removing it.

Queue: The operation ____() adds an element to the end of the queue.

Queue: The operation ____() removes the element from the front of the queue.

Queue: The operation ____() returns the element at the front of the queue without removing it.

Priority Queue: In a priority queue, elements are ordered based on their ________.

Stack and Queue: Both stacks and queues are examples of ________ data structures.