对矩阵进行Lu分解,使用使用c语言实现,时间复杂度和力论的一样,比较高-Lu decomposition on the matrix, the use of the use of c language, time complexity and power of the same, relatively high
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002213s ]
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:0.086337s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002100s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001955s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002421s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003705s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002323s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003526s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014885s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002461s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 237081 [ RunTime:0.001185s ]
