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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 do you input commandline argument in IntelliJ IDEA?
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236
Windows, Linux, some Macs:
ALT+SHIFT+F10, Right, E, Enter, Tab, enter your command line param...
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
14811 silver badge1212 bronze badges
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...
Writing Unicode text to a text file?
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Deal exclusively with unicode objects as much as possible by decoding things to unicode objects...
Ignore outliers in ggplot2 boxplot
How would I ignore outliers in ggplot2 boxplot? I don't simply want them to disappear (i.e. outlier.size=0), but I want them to be ignored such that the y axis scales to show 1st/3rd percentile. My outliers are causing the "box" to shrink so small its practically a line. Are there some techniques...
php stdClass to array
...n_encode and json_decode methods. These are automatically bundled in PHP 5.2.0 and up. If you use any older version there's also a PECL library (that said, in that case you should really update your PHP installation. Support for 5.1 stopped in 2006.)
Converting an array/stdClass -> stdClass
$...
ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
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How to do the equivalent of pass by reference for primitives in Java
...tln("Toy number in play after increement " + toy.toyNumber);
}
Choice 2: return the value instead of pass by reference
int play(int toyNumber){
System.out.println("Toy number in play " + toyNumber);
toyNumber++;
System.out.println("Toy number in play after increement " + toy...