Timeline for Strange performance difference
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 14, 2014 at 12:35 | history | edited | WhiteEyeTree | CC BY-SA 3.0 |
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| Feb 14, 2014 at 4:15 | comment | added | DSM |
Aside: don't use is not 0, use != 0; is tests identity, and you want to test equality. It's only an implementation detail that it works at all.
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| Feb 14, 2014 at 2:06 | history | edited | Winston Ewert | CC BY-SA 3.0 |
added 4 characters in body
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| Feb 14, 2014 at 0:00 | history | edited | Jamal | CC BY-SA 3.0 |
added 7 characters in body; edited tags; edited title
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| Feb 13, 2014 at 22:45 | vote | accept | WhiteEyeTree | ||
| Feb 13, 2014 at 22:36 | comment | added | WhiteEyeTree | True that! Being lazy almost never pays back. Thank you! | |
| Feb 13, 2014 at 22:33 | comment | added | Gareth Rees |
Putting 1 into plist forces you to write the loop as for div in plist[1:]: whereas if you left it out you could write for div in plist: and avoid the copy.
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| Feb 13, 2014 at 22:28 | comment | added | WhiteEyeTree | Yeah you're right, the number 1 has been excluded from the prime numbers. We can say that the number 1 is kind of inconvenient for the mathematical pattern of prime numbers, we can say that you can factor any non prime number into a product of primes, like: 24 = 3 * 2^3. If we include the 1 we can write it like: 24 = 3 * 2^3 * 1^153 and nothing would change. But 1 still remains a prime afterall because he follow the general rules nPrime = 1 x nPrime ( 1 = 1 x 1 ). I just don't care being this formal for this little algorithm :) | |
| Feb 13, 2014 at 21:43 | comment | added | Gareth Rees | 1 is not a prime. | |
| Feb 13, 2014 at 21:39 | answer | added | Sisnett | timeline score: 5 | |
| Feb 13, 2014 at 20:04 | review | First posts | |||
| Feb 13, 2014 at 21:17 | |||||
| Feb 13, 2014 at 19:51 | history | edited | Jamal | CC BY-SA 3.0 |
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| Feb 13, 2014 at 19:45 | history | asked | WhiteEyeTree | CC BY-SA 3.0 |