codeforces 414B << link

solution i was looking at >> 31509108

There’s a note at bottom that says:

**[1, 2], [1, 3] ** will be lists included.

if i divide 1 by 2 (successor) as **1/2=0.5** or leaves remainder as **1**.

and also b1 <= b2 therefore the list can’t be **[2,1]**. Why is **[1,2]** included in the good sequence?

Can we consider fractions?

So i tried looking at the above mentioned solution but couldn’t get it. I am able to solve dp problems with usually 1D array memorization much easily but fail implementing such where we need 2D. Am i missing some concepts of DP or is it only a matter of practice. How to i get to form logics for such problems. Shall I take some tutorials or learn practicing?

- i am a newbie started a month ago, and don’t have any idea about combinatorics, so need guidance.