Competitive Programming Guide - Math #13 - Graph Matrix Exponentiation

More graph matrix exponentiation magic. This problem is a good illustration of how understanding a technique well enough to be able to modify it (understanding the "implementation" and not just the "interface") can pay off.

[nagendrapp]

Hey could you please guide me I'm learning c++ I'm started practicing parallely in hackerrank
1.c++ in hacker rank
2.dsa basics in hacker rank upto 3 months and then
4.4th month I want practice all question in CSES problem set and also using cp handbook as parallelly
5. 5th participate in code chef and code force this way is good i have no guidance could you plz replay to my msg I'm reading several articles and blogs and also
5th month I'm go for A2OJ ladder or Junior sheet ?
I'm weak in maths for cp Calculus and some advance matha is required???