lypbendlf - 博客园

2018年11月1日

摘要： Consider a positive integer N written in standard notation with k+1 digits ai as ak⋯a1a0 with 0≤ai<10for all i and ak>0. Then N is p 阅读全文

posted @ 2018-11-01 15:24 lypbendlf 阅读(215) 评论(0) 推荐(0)

2018年10月31日

py-统计一个矩阵中每一列的非0数的个数

摘要： 1.文件类型类似于这样：不过数据量比这个要更大一点。 2.对应上述数据的运行结果： //其中学到了不少东西。运行结果： 1.如何按行读取文件并且存储到list中 2.如何创建一个指定长度和初值的list 3.从文件中读取的行进行split之后仍然是str类型的 4.如何画折线图进行巩固 5.其中阅读全文

posted @ 2018-10-31 16:31 lypbendlf 阅读(907) 评论(0) 推荐(0)

2018年10月30日

PAT 1125 Chain the Ropes[一般]

摘要： Given some segments of rope, you are supposed to chain them into one rope. Each time you may only fold two segments into loops and chain them into one 阅读全文

posted @ 2018-10-30 13:10 lypbendlf 阅读(170) 评论(0) 推荐(0)

2018年10月29日

PAT 1146 Topological Order[难]

摘要： This is a problem given in the Graduate Entrance Exam in 2018: Which of the following is NOT a topological order obtained from the given directed grap 阅读全文

posted @ 2018-10-29 20:52 lypbendlf 阅读(399) 评论(0) 推荐(0)

用tophat和cufflinks分析RNAseq数据[转载]

摘要：转自：http://blog.sciencenet.cn/home.php?mod=space&uid=635619&do=blog&id=884213 //今天看到一篇非常好的讲解RNA-seq的文章，mark一下。 1.基本步骤 RNAseq分析大致分下面几个步骤： ①首先要把测到的序列map到阅读全文

posted @ 2018-10-29 20:19 lypbendlf 阅读(429) 评论(0) 推荐(0)

PAT 1130 Infix Expression[难][dfs]

摘要： Given a syntax tree (binary), you are supposed to output the corresponding infix expression, with parentheses reflecting the precedences of the operat 阅读全文

posted @ 2018-10-29 15:48 lypbendlf 阅读(141) 评论(0) 推荐(0)

PAT 1118 Birds in Forest [一般]

摘要： Some scientists took pictures of thousands of birds in a forest. Assume that all the birds appear in the same picture belong to the same tree. You are 阅读全文

posted @ 2018-10-29 15:07 lypbendlf 阅读(159) 评论(0) 推荐(0)

生信-cufflinks输入输出文件分析

摘要：转自：https://wenku.baidu.com/view/8d6a95d20d22590102020740be1e650e52eacf2a.html 输出包含3个文件：转录组的组装.gtf 转录本表达水平.fpkm_tracking 基因表达水平.fpkm_tracking 1.转录组的组装. 阅读全文

posted @ 2018-10-29 11:44 lypbendlf 阅读(1100) 评论(0) 推荐(0)

2018年10月27日

PAT 1121 Damn Single[简单]

摘要： "Damn Single (单身狗)" is the Chinese nickname for someone who is being single. You are supposed to find those who are alone in a big party, so they can 阅读全文

posted @ 2018-10-27 20:08 lypbendlf 阅读(240) 评论(0) 推荐(0)

PAT 1049 Counting Ones [难]

摘要： The task is simple: given any positive integer N, you are supposed to count the total number of 1's in the decimal form of the integers from 1 to N. F 阅读全文

posted @ 2018-10-27 19:29 lypbendlf 阅读(146) 评论(0) 推荐(0)

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