Implementing a Queue Using Two Stacks class QueueWithStacks: def __init__(self): self.input_stack = [] self.output_stack = [] def enqueue(self, value: int) -> None: self.input_stack.append(value) def dequeue(self) -> int: if self.is_empty(): return None if self.output_stack: return self.output...
Stack and Queue Implementations LeetCode 232: Implementing a Queue Using Stacks Core Concept: Use two stacks, one for input and one for output. Whenn dequeuing, transfer all elements from the input stack to the output stack, then pop from the output stack. For enqueuing, push directly to the input s...
Data structures organize and store data in specific arrangements defining the relationships between elements. Linear structures establish a one-to-one sequential relationship among elements, encompassing arrays, linked lists, stacks, and queues. Arrays An array allocates a contiguous block of memory...