Hi,
I come to spoj to learn, not to compete.
There's a lot of problem and many of them are very tough for me since I have not studied the related subjects yet.
Is there a page/wiki where people has categorized the problems?
Like
Test your dynamic programming technique - try problem abc, def
Graph theories - try problem xyz, ghi
etc etc?
that'll make it super helpful for self studied individuals like me
thanks in advance! 
