Talk:Sum and product puzzle: Difference between revisions
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Now that I improved the task description, is this task ready for prime time? --[[User:Smls|Smls]] ([[User talk:Smls|talk]]) 14:47, 5 August 2016 (UTC)
: I went ahead and took it out of draft status. --[[User:Smls|Smls]] ([[User talk:Smls|talk]]) 12:35, 20 August 2016 (UTC)
== Scala ==
Could someone in the know please explain these two lines in plain English?
val step2 = step0 filter { sumEq(_) forall { prodEq(_).size != 1 }}
step2 contains the pairs whose product is unique and ??
val step3 = step2 filter { prodEq(_).intersect(step2).size == 1 }
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