Solve a community group

Awarded to Noriko HOUNOKI on 04 Dec 2020

Obtain 50 solvers for a problem you have created

Awarded to Noriko HOUNOKI on 06 Jul 2020

Accept 1 answer given by other contributors

Awarded to Noriko HOUNOKI on 26 Nov 2019

Solve 500 problems

Awarded to Noriko HOUNOKI on 29 Apr 2018

Create 10 problems

Awarded to Noriko HOUNOKI on 18 Jan 2018

Be the first to solve a problem

Awarded to Noriko HOUNOKI on 08 Jan 2018

Create a problem

Awarded to Noriko HOUNOKI on 25 Dec 2017

Solve all the problems in CUP Challenge

Awarded to Noriko HOUNOKI on 21 Dec 2017

Comment on a problem or solution

Awarded to Noriko HOUNOKI on 17 Dec 2017

Like a problem or solution

Awarded to Noriko HOUNOKI on 17 Dec 2017

Solve a problem for the first time

Awarded to Noriko HOUNOKI on 14 Jun 2017