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Find running median from a stream of integers
...itrary elements while maintaining sorted order. When coupled with a FIFO queue that tracks the n-th oldest entry, the solution is simple:
class RunningMedian:
'Fast running median with O(lg n) updates where n is the window size'
def __init__(self, n, iterable):
self.it = iter(ite...
Executing Batch File in C#
I'm trying to execute a batch file in C#, but I'm not getting any luck doing it.
12 Answers
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CORS Access-Control-Allow-Headers wildcard being ignored?
I am having trouble getting a cross domain CORS request to work correctly using Chrome.
5 Answers
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...ter(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
NSLog(@"parameter1: %d parameter2: %f", parameter1, parameter2);
});
More: https://developer.apple.com/documentation/dispatch/1452876-dispatch_after
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Are lists thread-safe?
I notice that it is often suggested to use queues with multiple threads, instead of lists and .pop() . Is this because lists are not thread-safe, or for some other reason?
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Create folder with batch but only if it doesn't already exist
Can anybody tell me how to do the following in in a Windows batch script? ( *.bat ):
9 Answers
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How to use background thread in swift?
... 3.0. Running something on the background thread looks like this:
DispatchQueue.global(qos: .background).async {
print("This is run on the background queue")
DispatchQueue.main.async {
print("This is run on the main queue, after the previous code in outer block")
}
}
Swift 1....
Python: changing value in a tuple
...you want to do this?
But it's possible via:
t = ('275', '54000', '0.0', '5000.0', '0.0')
lst = list(t)
lst[0] = '300'
t = tuple(lst)
But if you're going to need to change things, you probably are better off keeping it as a list
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Which comment style should I use in batch files?
I've been writing some batch files, and I ran into this user guide , which has been quite informative. One thing it showed me was that lines can be commented not just with REM , but also with :: . It says:
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ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
... is not recognized as an internal or external command, operable program or batch file.
– Shalini
Jun 2 '11 at 9:00
16
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