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Re:Trello clone with Phoenix and React – 5-part tutorial by strmpnk on Saturday January 23, 2016 @10:23AM (#10958622)
Yes. This is very similar if you consider the path on the b-tree with the alphabet L, R. It doesn't follow traditional lexical sorting though since RRL (5/2) comes before RR (3/1).

This is handy though. Consider having something at index 'a'. Now find something that comes right before it. You can't if you use traditional alphabetical ordering.

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