Not sure what happened to the formatting - here it is again: class QueensBase { int N = 2

## Advertising

double doFitness(List <Integer> board) { List <Integer> leftDiagonal = new ArrayList(2*N) List <Integer> rightDiagonal = new ArrayList(2*N) double sum = 0.0D for ( i in 1 .. 2*N) { leftDiagonal[i] = 0 rightDiagonal[i] = 0 } for ( i in 1 .. N) { leftDiagonal[i+board[i]-1]++ rightDiagonal[N-i+board[i]]++ } for ( i in 1 .. ((2*N) - 1)) { int counter = 0 if ( leftDiagonal[i] > 1) counter += leftDiagonal[i] - 1 if ( rightDiagonal[i] > 1) counter += rightDiagonal[i] - 1 sum += counter / (N - Math.abs(i-N)) } // target fitness is 0.0 // sum can be negative so return absolute value return Math.abs(sum) } } println new QueensBase().doFitness(1..16) On Fri, Apr 13, 2018 at 8:18 PM, Paul King <pa...@asert.com.au> wrote: > I tried this script: > > class QueensBase { > int N = 2 > > double doFitness(List <Integer> board) { > List <Integer> leftDiagonal = new ArrayList(2*N) > List <Integer> rightDiagonal = new ArrayList(2*N) > double sum = 0.0D > > for ( i in 1 .. 2*N) { > leftDiagonal[i] = 0 > rightDiagonal[i] = 0 > } > for ( i in 1 .. N) { > leftDiagonal[i+board[i]-1]++ > rightDiagonal[N-i+board[i]]++ > } > for ( i in 1 .. ((2*N) - 1)) { > int counter = 0 > if ( leftDiagonal[i] > 1) > counter += leftDiagonal[i] - 1 > if ( rightDiagonal[i] > 1) > counter += rightDiagonal[i] - 1 > sum += counter / (N - Math.abs(i-N)) > } > // target fitness is 0.0 > // sum can be negative so return absolute value > return Math.abs(sum) > } > } > > println new QueensBase().doFitness(1..16) > > > It worked for me in the Groovy Web Console, Intellij IDEA 2017.3.5 > pointing to 2.4.15, and the GroovyConsole for 2.4.15 and 2.3.0. > > Perhaps we need a bigger sample to track down your issue. > > Cheers, Paul. > > > On Fri, Apr 13, 2018 at 7:39 PM, Kerridge, Jon <j.kerri...@napier.ac.uk> > wrote: > >> Daniel, >> >> >> Thanks for getting back to me so quickly. >> >> >> I have converted to groovy2.4.15 and the same error occurs. I am running >> under Intellij IDE and had downloaded the sdk bundle. >> >> >> Jon >> >> >> >> >> Professor Jon Kerridge >> School of Computing >> Edinburgh Napier University >> Merchiston Campus >> Edinburgh EH10 5DT >> >> 0131 455 2777 >> j.kerri...@napier.ac.uk >> http://www.soc.napier.ac.uk/~cs10/ >> >> ------------------------------ >> *From:* Daniel.Sun <sun...@apache.org> >> *Sent:* 12 April 2018 18:22:39 >> *To:* d...@groovy.incubator.apache.org >> *Subject:* Re: Compiler bug >> >> Please try Groovy 2.4.15. >> >> Cheers, >> Daniel.Sun >> >> >> >> -- >> Sent from: http://groovy.329449.n5.nabble.com/Groovy-Dev-f372993.html >> >> This message and its attachment(s) are intended for the addressee(s) only >> and should not be read, copied, disclosed, forwarded or relied upon by any >> person other than the intended addressee(s) without the permission of the >> sender. If you are not the intended addressee you must not take any action >> based on this message and its attachment(s) nor must you copy or show them >> to anyone. Please respond to the sender and ensure that this message and >> its attachment(s) are deleted. >> >> It is your responsibility to ensure that this message and its >> attachment(s) are scanned for viruses or other defects. Edinburgh Napier >> University does not accept liability for any loss or damage which may >> result from this message or its attachment(s), or for errors or omissions >> arising after it was sent. Email is not a secure medium. Emails entering >> Edinburgh Napier University's system are subject to routine monitoring and >> filtering by Edinburgh Napier University. >> >> Edinburgh Napier University is a registered Scottish charity. >> Registration number SC018373 >> > >