一个效率可以的线段树代码
可以直接用来求解矩形面积并
另外可以修改实现更多功能.-The efficiency of the line segment can be a tree code can be directly used to solve the rectangular area and the other can be modified to achieve more.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001127s ]
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:0.078976s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001020s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001243s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000965s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003047s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000790s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003749s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018003s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001488s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 206755 [ RunTime:0.015481s ]
