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Are duplicate keys allowed in the definition of binary search trees?
I'm trying to find the definition of a binary search tree and I keep finding different definitions everywhere.
12 Answers
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Add Foreign Key to existing table
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Reasons help me understand and remember. This is because you can't add a foreign key to an non-unsigned field, correct?
– PixMach
Sep 28 '15 at 21:25
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Python json.loads shows ValueError: Extra data
I am getting some data from a JSON file "new.json", and I want to filter some data and store it into a new JSON file. Here is my code:
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What is the difference between C# and .NET?
May I know what is the difference between C# and .NET? When I think of C#, right away I would say it is a .NET language, but when I search for job posts, they require candidates to have C# and .NET experience. Can someone give me an explanation?
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printf format specifiers for uint32_t and size_t
...antic, then. It's probably going off the names of types in the source code and doesn't realize they're equivalent. I wonder what it would do with @KennyTM's answer... It certainly should be more portable.
– Cogwheel
Jul 2 '10 at 18:49
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Where can I learn how to write C code to speed up slow R functions? [closed]
...for learning how to write C code for use with R? I know about the system and foreign language interfaces section of R extensions, but I find it pretty hard going. What are good resources (both online and offline) for writing C code for use with R?
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Removing all non-numeric characters from string in Python
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and that could be: from re import sub
– James Koss
May 6 '19 at 21:34
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Validating email addresses using jQuery and regex
...regex didn't satisfy your needs you can change it, anyway i have tested it and it work fine. jsfiddle.net/ADPaM
– Luca Filosofi
Apr 13 '11 at 10:21
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Is it possible to use argsort in descending order?
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If you negate an array, the lowest elements become the highest elements and vice-versa. Therefore, the indices of the n highest elements are:
(-avgDists).argsort()[:n]
Another way to reason about this, as mentioned in the comments, is to observe that the big elements are coming last in the ar...
How do I find out which keystore was used to sign an app?
I have an app which is signed and several keystore files. I'd like to update the app, so I need to find out which one of keys was used.
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