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Binary Tree Level Order Traversal 题目链接 题目要求： Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from left to right, lev... 阅读全文
posted @ 2015-07-08 21:53
峰子_仰望阳光
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题目链接 题目要求： Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree i... 阅读全文
posted @ 2015-07-08 21:00
峰子_仰望阳光
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题目链接 题目要求： Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number. An example is the root-to-leaf pat... 阅读全文
posted @ 2015-07-08 20:44
峰子_仰望阳光
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题目链接 题目要求： Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows:The left subtree of a nod... 阅读全文
posted @ 2015-07-08 19:59
峰子_仰望阳光
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Path Sum 题目链接 题目要求： Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path ... 阅读全文
posted @ 2015-07-08 13:59
峰子_仰望阳光
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Symmetric Tree 题目链接 题目要求： Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary ... 阅读全文
posted @ 2015-07-08 11:22
峰子_仰望阳光
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本文摘录自TCP中的MSS解读。 MSS 是TCP选项中最经常出现，也是最早出现的选项。MSS选项占4byte。MSS是每一个TCP报文段中数据字段的最大长度，注意：只是数据部分的字段，不包括TCP的头部。TCP在三次握手中，每一方都会通告其期望收到的MSS（MSS只出现在SYN数据包中）... 阅读全文
posted @ 2015-07-08 10:06
峰子_仰望阳光
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