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Re^2: One for the weekend: challenge

by karavelov (Monk)
on Jun 01, 2008 at 21:30 UTC ( #689599=note: print w/replies, xml ) Need Help??


in reply to Re: One for the weekend: challenge
in thread One for the weekend: challenge

Amazing! It runs very fast! Here it runs for 0,6 seconds on the standard set of 1000 numbers (compared to 2.2 sec my code). With growing the set of numbers they are comparable in speed - for 50000 numbers they are equal 13.7 seconds. It seems that I am hurt by the regex compile time.

I think your code is better than mine because :
1. you do not relay on some experimental features and recent optimizations;
2. The difference is in how we get the possible correct continuations of the number. My code generates them with the hairy regular expression. Your code generates all possible continuations and filter only the correct ones trough hash lookup.
3. less is more

Best regards

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[karlgoethebier]: shmem: scheiss technik
[karlgoethebier]: shmem: yes - i f you manage it to get on the bike. and pray if you must stop...
[shmem]: in the french alpes, at the end of a gravel road, we had a beer at a hut - and heard an enduro coming up.
[shmem]: not by the road, but from there below where you wouldn't want to walk.
[shmem]: the biker stopped the machine at the table and took off his helmet.
[shmem]: long white hair, long beard the same, then he proceeded to get off the bike
[shmem]: saying "biking itself isn't that much, but getting up and down - hell!"

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