2019年1月5日
155. Min Stack - Easy
摘要： Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Remov 阅读全文
posted @ 2019-01-05 04:39 fatttcat 阅读(159) 评论(0) 推荐(0) 编辑