bop ------ questions in the book of Beauty of Programming
toffer ------ questions in the book of jian zhi offer
sort ------ algorithm and questions about sorting
asked ------ questions which were asked to write online or on paper
leetcode ------ questions at https://leetcode.com/onlinejudge
java ------ some practice code about java thread
jobdu ------ question from https://ac.jobdu.com/
topcoder ------ question from https://www.topcoder.com/
usaco ------ https://cerberus.delos.com:790/usacogate
others ------ mei xiang hao
简历:https://docs.google.com/document/d/1VTepwubvcALmrcJc_TGOyT0J1B9VvusedhCcvCBvRFg/edit?usp=sharing
android bluetooth game show https://v.youku.com/v_show/id_XNTQwMTM2MzYw.html