移动test.cpp到cpp目录下
add test main file:MazeTravelTest.java
find the minimize sum of sub array
move from local mycode to github
just for test
add bst tree
add replace string function
5 6 7 chat
collision for test 7
add config dir , and emacs config code for slime
test for ssh
查询三个数据库标的关联
update the test data for joining sql
add data and modify the left outer join to left join
add plan