Has anyone ever used DAFSA instead of a Trie in programming contests? Any comments on its use?
Has anyone ever used DAFSA instead of a Trie in programming contests? Any comments on its use?
I can't seem to find an excellent tutorial on matrix exponentiation. So far, this is the best I've got: http://zobayer.blogspot.com/2010/11/matrix-exponentiation.html
Any recommendations?