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Re^4: Finding repeat sequences. (Results:Part 3. The **new** winner)

by BrowserUk (Pope)
on Jun 19, 2013 at 19:46 UTC ( #1039835=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Finding repeat sequences. (Results:Part 2. The winner)
in thread Finding repeat sequences.

Update: (I sent this to hdb as a /msg; and then decided it belongs in here): That is blinding! I've been looking for a solution that avoided being O(length string). Now I can stop looking. Thankyou!

Nice one++ Thank you :) (0.228s -v- 70.6s)

Partisipants in performance tests: hdb tobyink b: 4 in s: 7 hdb :: 0.000154 s b: 4 in s: 7 tobyink :: 0.000169 s b: 4 in s: 43 hdb :: 0.000098 s b: 4 in s: 43 tobyink :: 0.000333 s b: 4 in s: 402 hdb :: 0.000156 s b: 4 in s: 402 tobyink :: 0.000190 s b: 4 in s: 4003 hdb :: 0.000250 s b: 4 in s: 4003 tobyink :: 0.000233 s b: 26 in s: 44 hdb :: 0.000126 s b: 26 in s: 44 tobyink :: 0.000104 s b: 26 in s: 274 hdb :: 0.000040 s b: 26 in s: 274 tobyink :: 0.000106 s b: 26 in s: 2614 hdb :: 0.000031 s b: 26 in s: 2614 tobyink :: 0.000086 s b: 26 in s: 26008 hdb :: 0.000190 s b: 26 in s: 26008 tobyink :: 0.000492 s b: 6400 in s: 8044 hdb :: 0.000483 s b: 6400 in s: 8044 tobyink :: 0.052703 s b: 6400 in s: 69681 hdb :: 0.001241 s b: 6400 in s: 69681 tobyink :: 0.240158 s b: 6400 in s: 641930 hdb :: 0.017612 s b: 6400 in s: 641930 tobyink :: 4.962130 s b: 6400 in s: 6404352 hdb :: 0.208475 s b: 6400 in s: 6404352 tobyink :: 65.351273 s { hdb => { 26 => { 1 => "0.000125885009765625", 10 => "4.00543212890625e-005", 100 => "3.09944152832031e-005", 1000 => "0.000190019607543945", all => "0.000386953353881836", }, 4 => { 1 => "0.000154018402099609", 10 => "9.79900360107422e-005", 100 => "0.000156164169311523", 1000 => "0.000249862670898438", all => "0.000658035278320313", }, 6400 => { 1 => "0.000483036041259766", 10 => "0.00124096870422363", 100 => "0.0176119804382324", 1000 => "0.208475112915039", all => "0.227811098098755", }, all => "0.228856086730957", }, tobyink => { 26 => { 1 => "0.000103950500488281", 10 => "0.000106096267700195", 100 => "8.60691070556641e-005", 1000 => "0.000491857528686523", all => "0.000787973403930664", }, 4 => { 1 => "0.000169038772583008", 10 => "0.000333070755004883", 100 => "0.000190019607543945", 1000 => "0.000233173370361328", all => "0.000925302505493164", }, 6400 => { 1 => "0.0527029037475586", 10 => "0.240158081054688", 100 => "4.96213006973267", 1000 => "65.3512728214264", all => "70.6062638759613", }, all => "70.6079771518707", }, }

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Comment on Re^4: Finding repeat sequences. (Results:Part 3. The **new** winner)
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Re^5: Finding repeat sequences. (Results:Part 3. The **new** winner)
by hdb (Prior) on Jun 19, 2013 at 20:03 UTC

    Here are the credits:

    • tobyink for the basic algorithm and the boldness to step away from regexes.
    • sundialsvc4 for the final check whether or not the solution is found,
    • Eily to spot it in and extract it from sundialsvc4's writeup,
    • BrowserUK pointing out that the first version didn't work,
    • and to the Monastery for not expelling people loving to post code instead of lectures.

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