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How to deep copy a list?
...], [4, 5, 6]]
>>> b
[[1, 2, 3], [4, 5, 6]]
>>> a[0][1] = 10
>>> a
[[1, 10, 3], [4, 5, 6]]
>>> b # b changes too -> Not a deepcopy.
[[1, 10, 3], [4, 5, 6]]
Now see the deepcopy operation
>>> import copy
>>> b = copy.deepcopy(a)
>>>...
How to sort with a lambda?
...ou understand my confusion. I think it might be something weird with my VC10 Express (no service pack). I moved the project onto a machine with Visual Studio 2010 Team and it worked without the "-> bool".
– BTR
Feb 26 '11 at 0:59
...
Does Python optimize tail recursion?
...m + n # Update parameters instead of tail recursion
>>> trisum(1000,0)
500500
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Rails I18n validation deprecation warning
...@application/gems/authlogic-3.1.0/lib/authlogic/acts_as_authentic/email.rb:102:in `block in included'",
"/Users/weppos/.rvm/gems/ruby-2.0.0-p247@application/gems/authlogic-3.1.0/lib/authlogic/acts_as_authentic/email.rb:99:in `class_eval'",
"/Users/weppos/.rvm/gems/ruby-2.0.0-p247@application/gems/...
C/C++ 如何向上取整？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...floor(x)返回的是小于或等于x的最大整数。
如： floor(10.5) == 10 floor(-10.5) == -11
使用ceil函数。ceil(x)返回的是大于x的最小整数。
如： ceil(10.5) == 11 ceil(-10.5) ==-10
floor()是向负无穷大舍入，floor(-10.5) == -11
ceil()是向正无穷...
Where IN clause in LINQ [duplicate]
...
10
this will compare string values, but what about ids??
– Jitendra Pancholi
Feb 22 '13 at 7:32
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Create a dictionary on a list with grouping
...
Dov
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answered Jun 2 '09 at 5:56
Prashant Cholachagu...
awk without printing newline
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answered Jan 7 '10 at 16:56
CodeRainCodeRain
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Why is GHC so large/big?
...erence, etc.
– mcandre
Feb 8 '11 at 10:10
4
So, 113MB / 4 ~= 28MB, still bigger than OpenJRE... B...
Binding a Button's visibility to a bool value in ViewModel
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edited Dec 24 '13 at 10:12
gordonmleigh
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