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Here's a simple PHP script that calculates bytes frequencies from 10 random Wikipedia articles: <?php $frequencies = array(); $total = 0; for ($i=0; $i<256; $i++) $frequencies[$i] = 0; for ($i=0; $i<10; $i++) { $src = file_get_contents('https://en.wikipedia.org/wiki/Special:Random'); foreach (str_split($src) as $char) { ...


The course on coursera is similar to the course CS255 given in Stanford university. You can find the course homepage at CS255 course homepage. There are many homeworks and projects that you can check. To further reinforce the information presented, read the pages suggested in the "Readings" of the course syllabus at CS255 course syllabus

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