问题背景 业务准备在天翼云上搭建一套线上环境,VM 操作系统版本为 CentOS Linux release 7.4.1708,但是在 ambari Web 管理页面上部署hadoop节点主机的时候,遇到了register失败,无法继续部署的问题. 安装 Ambari 的程序包都是在老的集群环境直接拷贝过来,在老集群上(Red Hat Enterprise Linux Server release 7.3 (Maipo))并未出现此问题,OpenSSL version OpenSSL 1.0.2…
bc是Linux下的命令行式的计算器. 题目虽然叫任意进制,但是因为bc的限制,输入进制是2~16范围:输出进制是2~999范围.这与常见计算器的进制范围是一致的,比如windows计算器最高也只能处理16进制输入数据. 一.bc计算器的使用 bc计算器默认输入.输出都为10进制. [root@centos6 ~]# bc #打开bc计算器 bc 1.06.95 Copyright 2006 Free Software Foundation, Inc. This is free software…
http://acm.hdu.edu.cn/showproblem.php?pid=5661 Claris and XOR Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 146 Accepted Submission(s): 51 Problem Description Claris loves bitwise operatio…
Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 354 Accepted Submission(s): 100 Problem Description ZYB has a tree with N nodes,now he wants you to solve the numbers of nodes distanced no m…
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 175 Accepted Submission(s): 74 Problem Description ZYB has a premutation P,but he only remeber the reverse log of each prefix of the premutat…
bp bp 命令是在某个地址下断点, 可以 bp 0x7783FEB 也可以 bp MyApp!SomeFunction . 对于后者,WinDBG 会自动找到MyApp!SomeFunction 对应的地址并设置断点. 但是使用bp的问题在于: 1)当代码修改之后,函数地址改变,该断点仍然保持在相同位置,不一定继续有效: 2)WinDBG 不会把bp断点保存工作空间中 bp Address或bp 伪寄存器或bp符号名称: 0:000> x Simple1Demo!CSimple1DemoAp…
[源码下载] 重新想象 Windows 8 Store Apps (65) - 后台任务: 音乐的后台播放和控制 作者:webabcd 介绍重新想象 Windows 8 Store Apps 之 后台任务 音乐的后台播放和控制 示例用于保存每首音乐的相关信息的对象BackgroundTask/SongModel.cs /* * 用于保存每首音乐的相关信息 */ using System; using System.Threading.Tasks; using Windows.Storage; n…
Building Blocks Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 751 Accepted Submission(s): 164 Problem Description After enjoying the movie,LeLe went home alone. LeLe decided to build block…