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How can building a heap be O(n) time complexity?

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Optimal number of threads per core

...h data you read/write simultaneously (i.e. if you use SSE 4.2 and read 256 bits values, that stops all threads in their step... in other words, 1 thread is probably a lot easier to implement and probably nearly as speedy if not actually faster. This will depend on your process & memory architect...
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How to check a string for specific characters?

... Could you please provide a bit more context to your answer. – brass monkey Aug 21 '18 at 15:58 ...
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Accessing dict keys like an attribute?

...s" list, this combines the namespace of stored keys (which may come from arbitrary and/or untrusted data!) with the namespace of builtin dict method attributes. For example: d = AttrDict() d.update({'items':["jacket", "necktie", "trousers"]}) for k, v in d.items(): # TypeError: 'list' object is n...
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Hidden features of WPF and XAML?

...ossed for v5 – Simon_Weaver Aug 11 '10 at 3:45 5 This is great, but I'd be tempted NOT to do it. ...
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Show a Form without stealing focus?

...turn true; } } And if you don't want the user to click this notification window either, you can override CreateParams: protected override CreateParams CreateParams { get { CreateParams baseParams = base.CreateParams; const int WS_EX_NOACTIVATE = 0x08000000; const int WS_EX_TOOLWI...
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Timeout a command in bash without unnecessary delay

...) you can implement all variants timeout supports. --preserve-status is a bit difficult, though. This is left as an exercise for the reader ;) This recipe can be used "naturally" in the shell (as natural as for flock fd): ( set +b sleep 20 & { YOUR SHELL CODE HERE } & wait -n kill `jobs...
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Assignment inside lambda expression in Python

...u'', 'bar', 'x'] >>> You can, of course, tweak the condition a bit. In this case it filters out duplicates, but you can also use a.count(""), for example, to only restrict empty strings. Needless to say, you can do this but you really shouldn't. :) Lastly, you can do anything in pure P...
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Convert columns to string in Pandas

...liseconds since epoch. – Sussch Jul 10 '19 at 5:41 1 @Sussch I suspect that's because json doesn'...
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In c# is there a method to find the max of 3 numbers?

...nd 5 measurements... If you turn on optimizations the trend turns and Math wins more the more values you add. But... you would need billions of comparisons before performance mattered. – Jens Jul 8 '16 at 8:41 ...