I have two questions.

1. Will the stay and food arrangements be provided by the site which is hosting the regionals?

2. The Kanpur-Mathura Regionals would happen in Kanpur or it might even take place in Mathura?

Any idea on this? Amritapuri, Kanpur-Mathura and Kharagpur Regionals deadlines.

Is there any prime number larger than 998244353 which is such that we can apply NTT on arrays of size up to 2^19 and the prime number is greater than 1e11

What's your view regarding this...

Can someone tell that when the final rank list of ICPC Kanpur-Mathura Regionals would be published?

Can anyone tell me how many colleges participated in ICPC Amritapuri Preliminary round 2020? [user:Balajiganpati]

This is just for now or it would be the general trend from now on.

https://www.codechef.com/problems/QRYLAND This is a problem of heavy light decomposition but I was unable to get about the hash function(xor) concept which is being used in the editorial(https://discuss.codechef.com/t/qryland-editorial/29306) in order to verify that whether the path from u to v of length l is a permutation of numbers from 1 to l or not so if someone could tell something about the concept or the idea then it would be great.