collect.out

四皇后问题

Little Smalltalk
	example
7
#( $e $x $a $m $p $l $e )
2
Bag ( $x $l $m $p $a $e $e )
Set ( $l $p $m $a $x $e )
exampl
Dictionary ( 1 @ $e 2 @ $x 3 @ $a 4 @ $m 5 @ $p 6 @ $l 7 @ $e )
List ( $e $x $a $m $p $l $e )
List ( 0.666667 $e $x $a $m $p $l $e 12.5 13.25 14 14.75 )
14.75
List ( 0.666667 $e $x $a $m $p $l $e 12.5 13.25 14 $a 7 )
xmpl
xampl
aeelmpx
xpmleea
Set ( 7 6 5 4 3 2 1 )
Bag ( $x $l $m $p $a $e $e )
xxxmxlx
Bag ( 1 2 3 4 5 6 )
6
Bag ( 1 3 5 )
Set ( 2 1 0 )
3
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