Takafumi

Provide your first answer ever to someone else's question

Awarded to Takafumi on 20 Jul 2017

Contribute at least one answer each month for 3 consecutive months

Awarded to Takafumi on 06 Feb 2018

10 of your answers have been accepted

Awarded to Takafumi on 20 Dec 2022

Solve a problem for the first time

Awarded to Takafumi on 04 Feb 2014

Be the first to solve a problem

Awarded to Takafumi on 04 Feb 2014

Publish your first submission

Awarded to Takafumi on 09 Oct 2019

Publish your first review

Awarded to Takafumi on 09 Oct 2019

Your submissions were downloaded 10 or more times in a month

Awarded to Takafumi on 01 Jul 2020