Here's my naive Haskell implementation, done without studying any of the others here, though after finishing and looking briefly through them, it is rather similar to some.
merge (x:xs) (y:ys)
| x < y = x : merge xs (y:ys)
| x > y = y : merge (x:xs) ys
| x == y = x : merge xs ys
supermerge (x:) = x
supermerge (x:y:ys) =
supermerge $ (merge x y) : ys
multiples x =
map (*x) [1..]
multiplesFromList x =
supermerge $ map (multiples) x
limbic's_challenge = multiplesFromList [2,3,5]
I'm not sure how fast it is comparatively (especially since I'm running it in Hugs), but I can get a million items in about 20 seconds.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||