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MGM v. Grokster
What happened? MGM movie and song producer. Similar peer to peer program as Napster, illegal distribution of copyrighted movies and songs. Grokster tr ...
分类:其他好文   时间:2020-06-09 23:22:41    阅读次数:104
【LevelDB源码阅读】Hash
是什么 是一种哈希函数,采用的是MurMurHash的一种变体,是一种高效低碰撞的非加密型哈希函数。 为什么要用 具有较高的平衡性与低碰撞率 学到什么 对于大块数据,可以分多个小的部分进行哈希计算 源码分析 主要就一个hash接口 uint32_t Hash(const char *data, si ...
分类:数据库   时间:2020-06-09 14:36:16    阅读次数:86
将字节串解读为打包的二进制数据
struct 将字节串解读为打包的二进制数据 — Python 3.8.3 文档 https://docs.python.org/zh-cn/3.8/library/struct.html 源代码: Lib/struct.py 此模块可以执行 Python 值和以 Python bytes 对象表示 ...
分类:其他好文   时间:2020-06-04 13:46:50    阅读次数:53
PAT.1049 Counting Ones(排列组合)
1049 Counting Ones (30分) 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 th ...
分类:其他好文   时间:2020-05-29 23:43:50    阅读次数:106
What is the difference between sed and awk
What is the difference between sed and awk sed is a stream editor. It works with streams of characters on a per-line basis. It has a primitive program ...
分类:其他好文   时间:2020-05-24 11:34:00    阅读次数:81
Bit Masking
Masking lets you modify a specific bit (or bits) using a bit pattern (called the mask) and a logical bitwise operator (AND, OR, or XOR). By changing t ...
分类:其他好文   时间:2020-05-19 12:29:32    阅读次数:62
PAT1027 Colors in Mars (20分) 10进制转13进制
题目 People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6 digit number, w ...
分类:其他好文   时间:2020-05-18 14:35:03    阅读次数:49
1027 Colors in Mars (20分)
People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number, wher ...
分类:其他好文   时间:2020-05-16 22:26:57    阅读次数:80
NLP gensim 相似度计算
```python from collections import defaultdict from gensim import corpora import jieba from gensim import similarities import re class Similarity: def ... ...
分类:其他好文   时间:2020-05-06 01:08:10    阅读次数:52
字符串相似度处理函数
oracle里面查比如存储过程里面与表SALES有关jobs: SELECT * FROM (SELECT a.name,upper(b.what)AS what,SYS.UTL_MATCH.edit_distance_similarity (a.name,upper(b.what)) AS sim ...
分类:其他好文   时间:2020-05-03 12:52:22    阅读次数:51
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