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Fast way of counting non-zero bits in positive integer
...half again as much time).
On the other hand, gmpy popcount() took about 1/20th of the time of bin(n).count("1"). So if you can install gmpy, use that.
To answer a question in the comments, for bytes I'd use a lookup table. You can generate it at runtime:
counts = bytes(bin(x).count("1") for x in ...
Does have to be in the of an HTML document?
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answered Aug 20 '09 at 1:16
Esteban KüberEsteban Küber
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iOS 7: UITableView shows under status bar
...ble view under. I've attempted to set the UITableView frame to offset by 20 pixels, but it doesn't appear to take effect and as I currently need the app to be compatible with iOS 6 I can't jump to iOS 7 Storyboards to force autolayout to use the top height guide. Has anyone found a solution that w...
Removing array item by value
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edited Aug 20 '13 at 22:05
answered Feb 13 '12 at 22:12
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Why doesn't java.util.Set have get(int index)?
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answered Apr 20 '09 at 19:20
Michael Myers♦Michael Myers
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How to convert a table to a data frame
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edited Nov 29 '16 at 20:39
Jaap
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answe...
When should I use cross apply over inner join?
...obably less efficient.
Update:
Just checked.
master is a table of about 20,000,000 records with a PRIMARY KEY on id.
This query:
WITH q AS
(
SELECT *, ROW_NUMBER() OVER (ORDER BY id) AS rn
FROM master
),
t AS
(
SELECT 1 AS id
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jQuery trigger file input
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answered Sep 4 '11 at 20:59
adardesignadardesign
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What is the difference between Class Path and Build Path
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answered Aug 20 '10 at 9:07
Andreas DolkAndreas Dolk
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Using an integer as a key in an associative array in JavaScript
...ys. JavaScript will convert the integer to a string. The following outputs 20, not undefined:
var test = {}
test[2300] = 20;
console.log(test["2300"]);
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