Can someone give me a more detailed explanation of technique used in the solution to problem D ? Or maybe post a link where it is explained in more detail.

akshaycool · August 16, 2018, 12:32am

and also tried to understand the problem given in this editorial
https://codeforces.com/blog/entry/61161

but not able to understand. Can anyone help me to understand the solution of this problem.

aryanc403 · August 16, 2018, 6:11pm

Bump.
@vijju123 can you help us out here.
If possible please explain C,E as well.