On Sun, 30 Dec 2018 at 17:53, Roelof Wobben via Pharo-users < pharo-users@lists.pharo.org> wrote:

Op 30-12-2018 om 02:14 schreef Ben Coman:

'abcdefg' asArray overlappingPairsRemainderCollect: [ :a :b :rem | { a.b.rem } ]

This was deliberately only half a solution. The block above "[ :a :b :rem | { a.b.rem } ]" is a placeholder only - to show you what data you would have to work with. You need to adapt it.

Sorry, I do not see how this can work so I can find the answer

qjhvhtzxzqqjkmpb is nice because is has a pair that appears twice (qj)

so if I try it on the code for overlappingPairsRemainderCollect I see this as answer :

"#($q $j #($h $v $h $t $z $x $z $q $q $j $k $m $p $b))"

The line above looks pertinent!! Inside the block you will have... a ==> $q b ==> $j rem ==> #($h $v $h $t $z $x $z $q $q $j $k $m $p $b) <snip>

"#($p $b #())"

How does help me the output in telling me that there are two pairs that are there two times

You might start with the following block... [ :a :b :rem | self halt. rem overlappingPairsCollect: [ :a2 :b2 | ...something... ] ] and from in the debugger experiment by inspecting the second half of it. cheers -ben