This is National Tsing Hua University Online Judge, an ACM-like online judge designed for training purposes and a platform of contest. You may utilize this site by the links on the side bar and top-right corner. Each of them will redirect you to a page with the following functions.
Click the link and join the contest!!
If you have any problem with any question, feel free to contact us.
If you have any system-wide problem to report, please contact us.