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How does a Breadth-First Search work when looking for Shortest Path?
I've done some research, and I seem to be missing one small part of this algorithm. I understand how a Breadth-First Search works, but I don't understand how exactly it will get me to a specific path, as opposed to just telling me where each individual node can go. I guess the easiest way to explain...
Get names of all keys in the collection
I'd like to get the names of all the keys in a MongoDB collection.
21 Answers
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remove all variables except functions
I have loaded in a R console different type of objects.
I can remove them all using
5 Answers
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How can I catch all the exceptions that will be thrown through reading and writing a file?
In Java, is there any way to get(catch) all exceptions instead of catch the exception individually?
7 Answers
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Turn off constraints temporarily (MS SQL)
I'm looking for a way to temporarily turn off all DB's constraints (eg table relationships).
5 Answers
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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...rst time you iterate over it. For example, this will print the headline of all entries in the database:
for e in Entry.objects.all():
print e.headline
So your ten million rows are retrieved, all at once, when you first enter that loop and get the iterating form of the queryset. The wait ...
Remove all files except some from a directory
When using sudo rm -r , how can I delete all files, with the exception of the following:
19 Answers
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Most tricky/useful commands for gdb debugger [closed]
...e breakpoint
where: Line number currently being executed
info locals: View all local variables
info args: View all function arguments
list: view source
rbreak: break on function matching regular expression
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Is SQL syntax case sensitive?
... are case-insensitive (SELECT, FROM, WHERE, etc), but are often written in all caps. However in some setups table and column names are case-sensitive. MySQL has a configuration option to enable/disable it. Usually case-sensitive table and column names are the default on Linux MySQL and case-insensit...
Get a list of all threads currently running in Java
Is there any way I can get a list of all running threads in the current JVM (including the threads not started by my class)?
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