Talk:Sum and product puzzle: Difference between revisions
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Walterpachl (talk | contribs) (→Scala: new section) |
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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) |
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) |
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: I went ahead and took it out of draft status. --[[User:Smls|Smls]] ([[User talk:Smls|talk]]) 12:35, 20 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) |
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== Scala == |
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Could someone in the know please explain these two lines in plain English? |
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val step2 = step0 filter { sumEq(_) forall { prodEq(_).size != 1 }} |
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step2 contains the pairs whose product is unique and ?? |
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val step3 = step2 filter { prodEq(_).intersect(step2).size == 1 } |
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