2019年1月4日
225. Implement Stack using Queues - Easy
摘要： Implement the following operations of a stack using queues. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. to 阅读全文
posted @ 2019-01-04 17:28 fatttcat 阅读(117) 评论(0) 推荐(0)
232. Implement Queue using Stacks - Easy
摘要： Implement the following operations of a queue using stacks. push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front 阅读全文
posted @ 2019-01-04 13:29 fatttcat 阅读(125) 评论(0) 推荐(0)
Sort With 2 Stacks - Medium
摘要： Given an array that is initially stored in one stack, sort it with one additional stacks (total 2 stacks). After sorting the original stack should con 阅读全文
posted @ 2019-01-04 13:07 fatttcat 阅读(365) 评论(0) 推荐(0)