IOI 2001 解题报告
内容：所有题目的详细分析以及参考程序
此外还有Ｔｅｓｔ数据-IOI 2001 Solving the contents of the report: a detailed analysis of all the topics and make reference to procedures in addition to Test Data
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001283s ]
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:0.078599s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001027s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001155s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000948s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003128s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000810s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003645s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014902s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001052s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 189983 [ RunTime:0.018944s ]
