Hey guys, recently I started to deepen algorithmic science. I relised that dynamics include a huge amount of techniques and approaches, I know some of them, but I'm not good at dinamycs with bits/masks for example. I don't know also many things in combinatorics like "the number of sequences such that their sum is t" which is 2^(t-1), not really this, but combinatorics like this. So I'm asking you for help. Can you give me please some useful links or name of methods? I would be greatful.