three-word-length code 三字长编码
Chapter operations to write a program, the input image Huffman, display the original image entropy encoded average code word length, and be able to reconstruct the image according to encoding.
第五章作业编写一个程序，对输入的图像进行哈夫曼编码，显示原图像的熵、编码后的平均码字长度、并能够根据编码重建出图像。
Listing 3 shows the same code with logic added that tests for word string length and frequency.
清单3展示了相同的代码，但是添加了测试单词字符串长度和频率的逻辑。
The word length errors using truncation of sign magnitude code are analyzed.
对原码截断算法的字长误差进行了理论分析；
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