Add an element to a queue based on its priority. If the priority is invalid ValueError is raised. If the queue is full an OverFlowError is raised. Return the highest ...

A heap is a binary tree that maintains a partial order where each parent is smaller (or larger) than its children. Python’s heapq module turns a simple list into an efficient priority queue. 4) Code ...

注释约定：关键概念在对应代码行后紧跟解释，包含 定义/作用/关联/数据流 四部分。 # 定义：堆/优先队列需要一个可比较的 ...