Achievement: Solve 10 1d problems
Solve 10 1d problems
![](/img/ac000i.png)
500 XP
Solve 10 1d problems.
170 users completed this achievement.
Completed by stefane, Jslate, GoDave89, Stable, faircatgod, MaIefik, nikbary, eigenvalue, Igor, ZavialovN and more.