面试题59 - II. 队列的最大值

import queue
class MaxQueue:
    def __init__(self):
        self.deque = queue.deque()
    def max_value(self) -> int:
        print(self.deque,"===")
        return max(self.deque) if self.deque else -1
    def push_back(self, value: int) -> None:
        self.deque.append(value)
    def pop_front(self) -> int:
        return self.deque.popleft() if self.deque else -1
max_q = MaxQueue()
max_q.push_back(1)
print(max_q.max_value)
# Your MaxQueue object will be instantiated and called as such:
# obj = MaxQueue()
# param_1 = obj.max_value()
# obj.push_back(value)
# param_3 = obj.pop_front()