note dws Now 108 <code>/^\w\w\z/&("MNCAKSCOHINMOKTNVALARIDCTX SDE GAZ ORIL IAKY"=~/$_/| /(FL|M[ADEIST]|N[DEHNJY]|PA|[UV]T|W[AIVY])/) </code> Another stoke off by adding a redundant check for Alaska, which allowed me to move Iowa and Kentucky out of the regexp and into the (more compact) string. <p> This suggests that there's a lesson in here about how a bit of redundancy in data can lead to more compact representations. I think we often hear problems like "match every state and nothing else" as "match every state <i>exactly once,</i> and nothing else." <p> 86047 86132