2015年6月16日

Count Complete Tree Nodes

摘要： Count Complete Tree Nodes问题：Given acompletebinary tree, count the number of nodes.Definition of a complete binary tree fromWikipedia:In a complete bin... 阅读全文

posted @ 2015-06-16 17:04 zhouzhou0615 阅读(193) 评论(0) 推荐(0) 编辑

Implement Stack using Queues

摘要： Implement Stack using Queues问题：Implement the following operations of a stack using queues.push(x) -- Push element x onto stack.pop() -- Removes the el... 阅读全文

posted @ 2015-06-16 15:31 zhouzhou0615 阅读(245) 评论(0) 推荐(0) 编辑

Rectangle Area

摘要： Rectangle Area问题：Find the total area covered by tworectilinearrectangles in a2Dplane.Each rectangle is defined by its bottom left corner and top right... 阅读全文

posted @ 2015-06-16 10:22 zhouzhou0615 阅读(264) 评论(0) 推荐(0) 编辑

Invert Binary Tree

摘要： Invert Binary Tree问题：Invert a binary tree. 4 / \ 2 7 / \ / \1 3 6 9to 4 / \ 7 2 / \ / \9 6 3 1思路: 简单的递归我的代码：pub... 阅读全文

posted @ 2015-06-16 09:46 zhouzhou0615 阅读(125) 评论(0) 推荐(0) 编辑

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