ABC words: Difference between revisions

no edit summary
(Add PL/I)
No edit summary
Line 1:
{{draft task|Basic language learning}}
[[Category: String manipulation]]
[[Category:Simple]]
[[Category:Strings]]
 
;Definition
A word is an   ''ABC word''   if the letters  "'''a'''",  "'''b'''"  and  "'''c'''"  appear in the word in alphabetical order.