[Pharo-users] can I avoid the nested loops

[Roelof Wobben]

Hello, For adventofCode I had to write some code that calculates the overlap that multiple rectangles have. Fo far I have it working for 1 rectangle but I do not like the code because of the nested loops. Can I make this more the pharo way Code so far : | item coordinates area overlap regexp line beginX endX beginY endY| area := OrderedCollection new. overlap := OrderedCollection new. regexp := '\#(\d+) @ (\d+),(\d+)\: (\d+)x(\d+)' asRegex. line := '#1 @ 1,3: 4x4'. (regexp matches: line) ifTrue: [ beginX := (regexp subexpression: 2) asInteger + 1. endX := (regexp subexpression: 5) asInteger + beginX . beginY := (regexp subexpression: 4) asInteger + 1. endY := (regexp subexpression: 6) asInteger + beginY. beginX to: (endX - 1) do: [:a | beginY to: (endY -1) do: [:b | item := a asString , '*' , b asString . (area includes: item) ifTrue: [ overlap add: item ] ifFalse: [ area add: item ]]]] . ^ area. Thanks, Roelof