My solutions and source codes for problems on various Online Judges:
(1) LightOJ - http://lightoj.com - around around 207 problems
(2) UVa Online Judge: http://uva.onlinejudge.org - around 946 problems
There're some problems in uva solutions folder coded in Java and there name have prefix 'uva'.
I intend to add more online judges later.
Feel free to contact me via lamphanviet at gmail dot com.