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    PAT(甲级)1143. Lowest Common Ancestor(30)

    PAT 1143. Lowest Common Ancestor(30) The lowest common ancestor (LCA) of two nodes U and V in a tree is the deepest node that has both U and V as descendants. A binary search tree (BST) is recursively defined as a binary tree which has the following properties: 1.The left subtree of a node contains only nodes with keys less than the node’s key. 2.The right subtree of a node contains only nodes with keys greater than or equal to the node’s key. 3.Both the left and right subtrees must also be binary search trees. Given any two nodes in a BST, you are supposed to find their LCA. 输入格式: Each input file contains one test case. For each case, the first line gives two positive integers: M (≤ 1,000), the number of pairs of nodes to be tested; and N (≤ 10,000), the number of keys in the BST, respectively. In the second line, N distinct integers are given as the preorder traversal sequence of the BST. Then M lines follow, each contains a pair of integer keys U and V. All the keys are in the range of int.

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    Jmeter(五十三) - 从入门到精通高级篇 - 懒人教你在Linux系统中安装Jmeter(详解教程)

    我们绝大多数使用的都是Windows操作系统,因此在Windows系统上安装JMeter已经成了家常便饭,而且安装也相对简单,但是服务器为了安全、灵活小巧,特别是前几年的勒索病毒,现在绝大多数的服务器都是Linux系统,因此就需要我们在Linux系统上安装JMeter。因此,宏哥今天讲解和分享学习下如何在Linux下安装Jmeter,因为Jmeter是Java开发的,需要依赖JDK环境,因此我们需提前安装好JDK。宏哥这里安装的安装包都是在线下载安装包,而不是从Windows系统下载好安装包,然后再上传到Linux系统中,最后解压安装,因此宏哥这种方法适合懒人,当然了勤奋的人那就更适合了哈。

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