Solve a 1d problem
250 XP
Solve a 1d problem.
Uncommon
Recently completed by
wanrada 12k, 
Tyler Oyakawa 2k, 
Michal Timko 2k, 
Xavier Richard 1k
and 2048 others.
wanrada 12k, Tyler Oyakawa 2k, Michal Timko 2k, Xavier Richard 1k 