Implement FIFO queue using two stacks in Python- Methods should have O.pdf
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The document outlines how to implement a FIFO queue using two stacks in Python, emphasizing that operations should have O(1) time complexity. It describes necessary stack methods including push, pop, peek, and is_empty. A class named 'TwoStacksQueue' is introduced, with placeholder methods for enqueue, dequeue, and checking if the queue is empty.
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Implement FIFO queue using two stacks in Python- Methods should have O.pdf
- 1. Implement FIFO queue using two stacks in Python. Methods should have O(1) time complexity. Stack: push() push operation, pop() remove and return value of top element, peek() return value of top element, is_empty() return true if stack empty, otherwise false class TwoStacksQueue: def __init__(self): pass def enqueue(self, x: int) -> None: pass def dequeue(self) -> int: pass def is_empty(self) -> bool: pass