I have learned suffix array from this pdf:- Suffix arrays – a programming contest approach Adrian Vladu and Cosmin Negruşeri (appearedin GInfo 15/7, November2005)
Whatever there are some very good problems discussed in the pdf , and I want to practice them,test them with my code. Unfortunately I don't find those problems in any OJ or somewhere else to test them. Because some of the descriptions look like "training camp 2003" , i don't know which training camp or where to go. If somebody knows the source of the problems used in this article , please let me know. Sorry for such a large post.
If you are just learnt suffix array, try those problems discussed in this article. those are really awesome.