背包问题
采用分枝限界法解决0/1背包问题! 本人上机实习作业,通过老师验收,合格! 针对部分上机实习的同学可以来下~
-Knapsack problem using Branch and Bound method to solve 0/1 Knapsack Problem! My internship on the machine operation, through the teacher acceptance, qualified! The machine for some internship students can come to the next ~
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001362s ]
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:0.080456s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001230s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001006s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003971s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001363s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016577s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001199s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 208430 [ RunTime:0.017635s ]
