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Modular multiplicative inverse function in Python
...aving problems with negative numbers using this algorithm. modinv(-3, 11) didn't work. I fixed it by replacing egcd with the implementation on page two of this pdf: anh.cs.luc.edu/331/notes/xgcd.pdf Hope that helps!
– Qaz
Nov 3 '14 at 23:02
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How to put attributes via XElement
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A CSS selector to get last visible div
..._element = $('div:visible:last');
Although hopefully you'll have a class/ID wrapped around the divs you're selecting, in which case your code would look like:
var last_visible_element = $('#some-wrapper div:visible:last');
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Check if list of objects contain an object with a certain attribute value
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How do I make an HTML text box show a hint when empty?
...hould display the text normally (black, non-italics). This will help me avoid clutter by removing the label.
21 Answers
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powershell 2.0 try catch how to access the exception
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SQL join on multiple columns in same tables
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Join like this:
ON a.userid = b.sourceid AND a.listid = b.destinationid;
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`testl` eax against eax?
...check for a terminating zero byte at the end of an implicit-length C-style string.
AVX512F adds kortestw k1, k2 and AVX512DQ/BW (Skylake-X but not KNL) add ktestb/w/d/q k1, k2, which operate on AVX512 mask registers (k0..k7) but still set regular FLAGS like test does, the same way that integer OR...
Spark java.lang.OutOfMemoryError: Java heap space
...ometimes isn't that bad if using SSDs).
(Advanced) Related to above, avoid String and heavily nested structures (like Map and nested case classes). If possible try to only use primitive types and index all non-primitives especially if you expect a lot of duplicates. Choose WrappedArray over nested s...
How can I click a button behind a transparent UIView?
... the subview takes up the center of the screen with 100 px margins on all sides. We then add a bunch of little stuff to click on inside that subview. We are only using the subview to take advantage of the new frame ( x=0, y=0 inside the subview is actually 100,100 in the parent view).
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