最优二叉树及编码，能够实现给出一组频率构造最优二叉树且求出其编码，在通讯中具有很好的作用。-optimal binary tree and coding, to achieve a given frequency Construction Group optimal binary tree can get its coding, the newsletter has a very good role.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001712s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.147475s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001883s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001762s ]
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UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 305144 [ RunTime:0.001550s ]
