Roger Hui

許國華 Interests: J, APL, mathematics/programming puzzles (example 0; example 1) a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h Places visited: countries (ccTLD) Canadian provinces   American states, districts, etc.		This user is one of the 47,314,627 most active English Wikipedians of all time. This user has been on Wikipedia for 18 years, 7 months and 7 days. en-5This user can contribute with a professional level of English. zh-1該用戶能以基本的中文進行交流。 该用户能以基本的中文进行交流。 APLThis user can program in APL. CThis user can program in C. JThis user can program in J. Erdős 2This user has an Erdős number of 2. This user enjoys classical music.