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  1. Há 5 horas · 霍夫曼编码是一种无损数据压缩算法。. 其思想是为输入字符分配可变长度的代码,分配的代码的长度基于相应字符的频率。. 分配给输入字符的可变长度代码是前缀码,这意味着代码(位序列)的分配方式是分配给一个字符的代码不是分配给任何其他字符的代码 ...

  2. Há 5 horas · c++ 霍夫曼编码 | 贪婪算法(Huffman Coding | Greedy Algo). 霍夫曼编码是一种无损数据压缩算法。. 其思想是为输入字符分配可变长度的代码,分配的代码的长度基于相应字符的频率。. 分配给输入字符的可变长度代码是前缀码,这意味着代码(位序列)的分配方式是 ...

  3. Há 9 horas · Forum: C / C++ IDE (CDT) «» Posted on: Thu, 29 April 2021 10:03 «» By: BronxCruz BronxCruz Why are C++ trigonometric functions fast, but not that fast ? When people try to optimize numerical algorithms, there is a point when the profiler says a significant part of time is spent computing sin, cos, tan, sqrt, etc. Re-implementing custom versions is often beneficial in term of CPU time (with ...