The PDF file of all problems can be downloaded HERE
2 3 3 1 1 1 1 2 1 1 3 1 2 3 1 5 5 1 2 3 2 1 1 2 1 1 3 1 1 4 1 1 5 1 2 3 0
Case #1: no Case #2: yes
Migrated from old NTUJ.
Regional Chengdu 2011