大约有 16,000 项符合查询结果（耗时：0.0200秒） [XML]
Position of least significant bit that is set
...nch.c -o bench.exe -std=c99 -Wall -O2
$ bench
Naive loop. Time = 2.91 (Original questioner)
De Bruijn multiply. Time = 1.16 (Tykhyy)
Lookup table. Time = 0.36 (Andrew Grant)
FFS instruction. Time = 0.90 (ephemient)
Branch free mask. Time = 3.48 (Dan / Jim Balter)
Double hack....
HTML table with 100% width, with vertical scroll inside tbody [duplicate]
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In following solution, table occupies 100% of the parent container, no absolute sizes required....
MySQL vs MongoDB 1000 reads
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15min for 10.000 rows? You typed each row? =))))
– Iurie Manea
Jan 9 '17 at 23:14
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What are the best practices for using a GUID as a primary key, specifically regarding performance?
... 1'000'000 rows (3.8 MB vs. 15.26 MB)
6 nonclustered indexes (22.89 MB vs. 91.55 MB)
TOTAL: 25 MB vs. 106 MB - and that's just on a single table!
Some more food for thought - excellent stuff by Kimberly Tripp - read it, read it again, digest it! It's the SQL Server indexing gospel, really.
GUID...
When is it appropriate to use UDP instead of TCP? [closed]
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Jarvis
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answered Jul 8 '09 at 18:08
S.LottS.Lott
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Data structure: insert, remove, contains, get random element, all at O(1)
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Tony DelroyTony Delroy
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a...
Is JavaScript's “new” keyword considered harmful?
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Javascript being dynamic language there a zillion ways to mess up where another language would ...
“Least Astonishment” and the Mutable Default Argument
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Even if it's a first-class object, one might still envision a design where the code for each default value is stored along with the object ...
What characters are valid for JavaScript variable names?
...5\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0...
In what cases do I use malloc and/or new?
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FerruccioFerruccio
91.9k3737 gold badges214214 silver badges291291 bronze badges
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