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1.1 ! root 1: program sets (input, output); ! 2: type ! 3: Color = (RED, BLUE, GREEN); ! 4: ColorSet = set of Color; ! 5: var ! 6: s : ColorSet; ! 7: ! 8: procedure p (var s : ColorSet); ! 9: begin ! 10: s := [RED, BLUE]; ! 11: end; ! 12: ! 13: begin ! 14: p(s); ! 15: if BLUE in s then begin ! 16: s := s - [BLUE]; ! 17: end; ! 18: end.
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