Problem A: The 3n + 1 problem Time Limit: 1 Sec Memory Limit: 64 MBSubmit: 14 Solved: 6[Submit][Status][Web Board] Description Consider the following algorithm to generate a sequence of numbers. Start with an integer n. If n is even, divide by 2. I…
今天是要yum命令安装EPEL仓库后 yum install epel-release 突然发现yum安装其他的软件出错. 错误:[Errno 14] problem making ssl connection Trying other mirror.Trying other mirrorError: Cannot retrieve repository metadata (repomd.xml) for repository: xxxx. Please verify its path and…
博客已经迁移至Marcovaldo's blog (http://marcovaldong.github.io/) Andrew Ng的Machine Learning比較简单,已经看完.林田轩的机器学习基石很多其它的是从概率论的角度来介绍机器学习,之前的视频已经听了大半.但好多都是模棱两可. 如今从头開始,认真整理笔记.笔记的结构遵从课程视频的结构. 以下是机器学习基石的第一讲:the learning problem Course Introduction 机器学习是一门理论和实践相结合的课…
The 3n + 1 problem Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 53927 Accepted: 17142 Description Problems in Computer Science are often classified as belonging to a certain class of problems (e.g., NP, Unsolvable, Recursive). In th…
Sum Problem Time Limit: 1000/500 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 338086 Accepted Submission(s): 85117 Problem Description Hey, welcome to HDOJ(Hangzhou Dianzi University Online Judge). In this pro…
The sum problem Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 31453 Accepted Submission(s): 9414 Problem Description Given a sequence 1,2,3,......N, your job is to calculate all the possib…
A + B Problem II Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 407964 Accepted Submission(s): 79058 Problem Description I have a very simple problem for you. Given two integers A and B, you…