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RSS订阅原创 hadoop搭建问题
Hadoop平台搭建过程及问题解决使用VM：文件：注：hadoop不能下载-src版本的：得编译，不能直接用，非-src的改配置文件就可以直接用。 CentOS自带的JDK不能用，得下载oracle的。下载链接：http://ftp.agdsn.de/pub/mirrors/centos/7.6.1810/isos/x86_64/CentOS-7-x86_64-DVD-1810.is...
2019-05-25 20:49:51
363
原创 204. Count Primes Python代码
Count the number of prime numbers less than a non-negative number, n.Example:Input: 10Output: 4Explanation: There are 4 prime numbers less than 10, they are 2, 3, 5, 7.算法的思想就是以此通过：22,33,44,55…ii；...
2019-05-21 11:17:14
363
原创 859. Buddy Strings Python代码
Given two strings A and B of lowercase letters, return true if and only if we can swap two letters in A so that the result equals B.Example 1:Input: A = “ab”, B = “ba”Output: trueExample 2:Input:...
2019-05-17 18:35:34
274
原创 559. Maximum Depth of N-ary Tree Python代码
Given a n-ary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.For example, given a 3-ary tree:We shou...
2019-05-16 20:38:12
568
原创 665. Non-decreasing Array Python代码
Non-decreasing ArrayGiven an array with n integers, your task is to check if it could become non-decreasing by modifying at most 1 element.We define an array is non-decreasing if array[i] <= ar...
2019-05-16 16:59:47
263
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