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Setting direction for UISwipeGestureRecognizer
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Why doesn't Dijkstra's algorithm work for negative weight edges?
...e true. For example:
A
/ \
/ \
/ \
5 2
/ \
B--(-10)-->C
V={A,B,C} ; E = {(A,C,2), (A,B,5), (B,C,-10)}
Dijkstra from A will first develop C, and will later fail to find A->B->C
EDIT a bit deeper explanation:
Note that this is important...
How to change language settings in R
...l set it to French and then back again:
> Sys.setenv(LANG = "fr")
> 2 + x
Erreur : objet 'x' introuvable
> Sys.setenv(LANG = "en")
> 2 + x
Error: object 'x' not found
A list of the abbreviations can be found here.
Sys.getenv() gives you a list of all the environment variables that ar...
How to find the nearest parent of a Git branch?
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How to get values from IGrouping
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Since IGrouping<TKey, TElement> implements IEnumerable<TElement>, you can use Sele...
Error “The connection to adb is down, and a severe error has occurred.”
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Lists in ConfigParser
...is way your config section would look like:
[Section 3]
barList=item1,item2
It's not pretty but it's functional for most simple lists.
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What programming practice that you once liked have you since changed your mind about? [closed]
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Automatically start forever (node) on system restart
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edited Nov 9 '15 at 17:28
cedricbellet
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answered Nov 14 '12 at 22...
What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
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Curly braces. Passing keyword arguments into dict(), though it works beautifully in a lot of s...