leetcode1381

 1 class CustomStack:
 2     def __init__(self, maxSize: int):
 3         self.maxSize = maxSize
 4         self.stack = [0] * maxSize
 5         self.position = -1
 6 
 7     def push(self, x: int) -> None:
 8         if self.position < self.maxSize - 1:
 9             self.position += 1
10             self.stack[self.position] = x
11 
12     def pop(self) -> int:
13         if self.position >= 0:
14             top = self.stack[self.position]
15             self.position -= 1
16             return top
17         else:
18             return -1
19 
20     def increment(self, k: int, val: int) -> None:
21         for i in range(min(k,self.maxSize)):
22             self.stack[i] += val

算法类型：设计题。使用数组实现栈。

posted on 2020-03-21 19:10 Sempron2800+ 阅读(121) 评论(0) 编辑收藏举报