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题目Total Accepted: 65121 Total Submissions: 190974 Difficulty: Medium Suppose a sorted array is rotated at some pivot unknown to you beforehan...
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posted @ 2015-10-23 13:29
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题目Evaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each operand may be an integer or...
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posted @ 2015-10-23 13:01
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题目Given an array of integers, every element appears three times except for one. Find that single one.Note: Your algorithm should have a linea...
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posted @ 2015-10-22 13:19
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题目Given an array of integers, every element appears twice except for one. Find that single one.Note: Your algorithm should have a linear runt...
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posted @ 2015-10-22 12:58
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题目Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example, “A man, a plan, a...
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posted @ 2015-10-21 13:10
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题目Say you have an array for which the ith element is the price of a given stock on day i.If you were only permitted to complete at most one t...
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posted @ 2015-10-21 12:52
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序makefile文件保存了编译器和连接器的参数选项,还表述了所有源文件之间的关系(源代码文件需要的特定的包含文件,可执行文件要求包含的目标文件模块及库等).创建程序(make程序)首先读取makefile文件,然后再激活编译器,汇编器,资源编译器和连接器以便产生最后的输出,最后输...
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posted @ 2015-10-21 11:34
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序（HUB）集线器工作在局域网(LAN)环境，像网卡一样，应用于OSI参考模型第一层，因此又被称为物理层设备。 Switch交换机工作在OSI第2层数据链路层 Router路由器工作在OSI第3层网络层 OSI模型一共7层，1-7层分别是：物理层 数据链路层 网络层 传输层 会话层...
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posted @ 2015-10-21 11:24
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题目Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; }Populate each ...
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posted @ 2015-10-20 13:21
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题目Given a binary tree and a sum, find all root-to-leaf paths where each path’s sum equals the given sum.For example: Given the below binary t...
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posted @ 2015-10-20 12:54
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