Hi all,
Singapore has recently concluded its 2014 National Olympiad in Informatics (on 8 March 2014), which is used to select the team to represent Singapore at 2014 IOI.
All tasks (4 of them) can be found here and all test data can be found here.
Edit: Just a note here, the time limits and memory limit of the problems can be found on the first page of the document (notes, point 5).
Enjoy the tasks!