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Is std::vector so much slower than plain arrays?
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Using the following:
g++ -O3 Time.cpp -I <MyBoost>
./a.out
UseArray completed in 2.196 seconds
UseVector completed in 4.412 seconds
UseVectorPushBack completed in 8.017 seconds
The whole thing completed in 14.626 seconds
So array is...
Get list from pandas DataFrame column headers
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edited Apr 3 '19 at 9:51
cs95
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Design for Facebook authentication in an iOS app that also accesses a secured web service
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n00bProgrammer
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answered Jan 7 '11 at 13:40
Dan RayDan Ray
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Move an item inside a list?
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answered Jul 3 '10 at 23:15
David ZDavid Z
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how to split the ng-repeat data with three columns using bootstrap
...ce(i, i+size));
}
return newArr;
}
$scope.chunkedData = chunk(myData, 3);
Then your view would look like this:
<div class="row" ng-repeat="rows in chunkedData">
<div class="span4" ng-repeat="item in rows">{{item}}</div>
</div>
If you have any inputs within the ng-...
Failed to build gem native extension (installing Compass)
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23 Answers
23
Active
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How to detect the currently pressed key?
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163
if ((Control.ModifierKeys & Keys.Shift) != 0)
This will also be true if Ctrl+Shift is dow...
Accessing dict_keys element by index in Python3
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Call list() on the dictionary instead:
keys = list(test)
In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dictionary into a list results in a list of all the keys:
>>> te...
How to get different colored lines for different plots in a single figure?
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432
Matplotlib does this by default.
E.g.:
import matplotlib.pyplot as plt
import numpy as np
x ...
Set width of a “Position: fixed” div relative to parent div
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answered May 3 '11 at 19:02
jeroenjeroen
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