Re: [Pharo-users] Little challenges for a friday evening

Nov. 11, 2016


      I pair programmed with my middle son and we got the following chapter.

Now going to bed :)


Le 11/11/16 Ã  16:13, Damien Pollet a Ã©crit :
...
On 11 November 2016 at 12:02, stepharo <stepharo@free.fr 
<mailto:stepharo@free.fr>> wrote:
String>>#isIsogram
             | letters |
             letters := Dictionary new.
             self do: [ :x | letters at: x ifAbsent: [] ifPresent: [
        ^false ].
Yes I did that one too and I was surprised because it was as slow
    as the bag implementation.
Anyone tried replacing the dictionary with an array of 26 booleans and 
indexing based on ascii, or even a SmallInteger and bit shifting?