NSUCRYPTO-2023
NSUCRYPTO-2021
NSUCRYPTO-2019
NSUCRYPTO-2017
NSUCRYPTO-2015
First round 2018
Section B
Problem 7 :
Additional information
- The question should be reformulated as follows: "Prove that the only element in R(r, n)/R(r-1,n), where 0 < r < n, fixed by the action of A is 0".
