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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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35 Answers
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Get element at specified position - JavaScript
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document.elementFromPoint(x, y);
http://dev.w3.org/csswg/cssom-view/#dom-document-elementfrompoint
http://msdn.microsoft.com/en-us/library/ms536417%28VS.85%29.aspx
https://developer.mozilla.org/en/DOM/document.elementFromPoint
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Why is the JVM stack-based and the Dalvik VM register-based?
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3 Answers
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Finding all possible combinations of numbers to reach a given sum
...ning, target, partial + [n])
if __name__ == "__main__":
subset_sum([3,9,8,4,5,7,10],15)
#Outputs:
#sum([3, 8, 4])=15
#sum([3, 5, 7])=15
#sum([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lec...
Difference between rake db:migrate db:reset and db:schema:load
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1328
db:migrate runs (single) migrations that have not run yet.
db:create creates the database
db:...
How to compare dates in datetime fields in Postgresql?
...thout timezone'. Client can search over this field with only date (i.e: 2013-05-03) or date with time (i.e: 2013-05-03 12:20:00). This column has the value as timestamp for all rows currently and have the same date part(2013-05-03) but difference in time part.
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Fastest way to convert Image to Byte array
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39
So is there any other method to achieve this goal?
No. In order to convert an image to a b...
In Ruby, is there an Array method that combines 'select' and 'map'?
... as a postfix if. compact gets rid of the nils.
jruby-1.5.0 > [1,1,1,2,3,4].map{|n| n*3 if n==1}
=> [3, 3, 3, nil, nil, nil]
jruby-1.5.0 > [1,1,1,2,3,4].map{|n| n*3 if n==1}.compact
=> [3, 3, 3]
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background-size in shorthand background property (CSS3)
...ground-size properties in a shorthanded background property. Based on W3C documentation background-size should come after background-position property separated with an slash( / ).
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JavaScript get window X/Y position for scroll
... thomasrutterthomasrutter
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