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Divide a number by 3 without using *, /, +, -, % operators

...0*3 + a/100*3 + a/1000*3 + (..). In binary it's almost the same: 1 / 3 = 0.0101010101 (base 2), which leads to a / 3 = a/4 + a/16 + a/64 + (..). Dividing by 4 is where the bit shift comes from. The last check on num==3 is needed because we've only got integers to work with. – Y...
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How do you create a transparent demo screen for an Android app?

...r. – Benito Bertoli Aug 31 '12 at 8:01 ...
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Why is reading lines from stdin much slower in C++ than Python?

... einpoklum 76.5k3535 gold badges190190 silver badges393393 bronze badges answered Feb 21 '12 at 3:24 Vaughn CatoVaughn Cato ...
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How do function pointers in C work?

...b\x5c\x24\x08\x8b\x00\x8b\x1b\x31\xc3\x31\xd8\x31\xc3\x8b\x4c\x24\x04\x89\x01\x8b\x4c\x24\x08\x89\x19\xc3 <- This swaps the values of a and b")(&a,&b); Write a for-loop counter to 1000, calling some function each time ((int(*)())"\x66\x31\xc0\x8b\x5c\x24\x04\x66\x40\x50\xff\xd3\x58\x66\...
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Enum ToString with user friendly strings

... answered Jan 26 '09 at 11:01 Ray BooysenRay Booysen 24.1k1111 gold badges7575 silver badges105105 bronze badges ...
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How can I test that a value is “greater than or equal to” in Jasmine?

... AndrewAndrew 1,73011 gold badge1212 silver badges99 bronze badges ...
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?

...e method from 'active_support'. >> time = Time.new => Fri Oct 03 01:24:48 +0100 2008 >> time.strftime("%a %b #{time.day.ordinalize}") => "Fri Oct 3rd" Note, if you are using IRB with Ruby 2.0, you must first run: require 'active_support/core_ext/integer/inflections' ...
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How to get a random number in Ruby

... answered May 5 '10 at 14:01 Marc-André LafortuneMarc-André Lafortune 70.6k1414 gold badges150150 silver badges162162 bronze badges ...
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Throwing exceptions from constructors

... Darren Cook 23.2k1010 gold badges8888 silver badges182182 bronze badges answered May 1 '09 at 10:02 NaveenNaveen ...
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Difference between static class and singleton pattern?

...methods. – Jon Skeet Sep 7 '13 at 8:01 10 @AmirBareket: It's not a singleton according to the sin...