Design a custom queue, MyQueue, using only two stacks. Implement the Push(), Pop(), Peek(), and Empty() methods:
You are required to only use the standard stack operations, which means that only the Push() to top, Peek() and Pop() from the top, Size(), and Is Empty() operations are valid.
Note: In some interview questions, Void Push(int x) and Int Pop() might be referred to as Void Enqueue(int x) and Int Dequeue(), respectively.
Constraints:
x <=100A queue is a first in, first out (FIFO) data structure, while a stack is a last in, first out (LIFO) data structure. We will use two stacks, stack1 and stack2, to preserve the FIFO property of a queue.
Push(): Whenever a new element is to be pushed, we will pop all elements from stack1 and push into stack2 so that the latest element is pushed to the bottom of stack1. We will then pop the elements from stack2 and push back into stack1, preserving the FIFO order.
Pop(): Since the order of insertion was preserved during ...
Design a custom queue, MyQueue, using only two stacks. Implement the Push(), Pop(), Peek(), and Empty() methods:
You are required to only use the standard stack operations, which means that only the Push() to top, Peek() and Pop() from the top, Size(), and Is Empty() operations are valid.
Note: In some interview questions, Void Push(int x) and Int Pop() might be referred to as Void Enqueue(int x) and Int Dequeue(), respectively.
Constraints:
x <=100A queue is a first in, first out (FIFO) data structure, while a stack is a last in, first out (LIFO) data structure. We will use two stacks, stack1 and stack2, to preserve the FIFO property of a queue.
Push(): Whenever a new element is to be pushed, we will pop all elements from stack1 and push into stack2 so that the latest element is pushed to the bottom of stack1. We will then pop the elements from stack2 and push back into stack1, preserving the FIFO order.
Pop(): Since the order of insertion was preserved during ...