scalapuzzlers/scalapuzzlers.github.com — pull request #69 by demobox (2013-05-07 03:11:03+00:00)
Title: Adding a puzzler proposal: 'Time to Fold?'

Perhaps just slightly too simple/obvious to be considered a puzzler (see also the [mailing list thread](https://groups.google.com/forum/?fromgroups=#!topic/scala-language/4h52vHuS7Qw)?) I've seen relatively experienced Scala developers caught out by this, though...