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Explain the use of a bit vector for determining if all characters are unique

...en't normally used by us layman- the author didn't bother taking the extra time out in explaining the process nor what the actual mechanics involved here are. I was content with the previous answer on this thread in the beginning but only on an abstract level. I came back to it because I felt ther...
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What is the correct syntax for 'else if'?

... no worries, we all have to learn sometime. I find it weird that python places such an elphisise on readbility and then goes and use elkif instead of else it. I suggest keeping the python API manual open at all times: docs.python.org/3.1 the important links are ...
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Arrays, heap and stack and value types

... the program and it'd clutter up the stack if they were left on it all the time. Or am I wrong? I'd guess they'd just be boxed and would live on the heap for as long the array existed. ...
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Does Java have something like C#'s ref and out keywords?

...problem in a "cleanest" way that I can think of for Java at this moment in time... – Pangamma Dec 23 '18 at 1:07 add a comment  |  ...
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SQL Server CTE and recursion example

... Q 1) how value of N is getting incremented. if value is assign to N every time then N value can be incremented but only first time N value was initialize. A1: In this case, N is not a variable. N is an alias. It is the equivalent of SELECT 1 AS N. It is a syntax of personal preference. There are 2...
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What is the difference between LL and LR parsing?

...or '{' is encountered. An LL parser cannot handle two rules at the same time, so it must chose either FunctionDef or FunctionDecl. But to know which is correct it has to lookahead for a ';' or '{'. At grammar analysis time, the lookahead (k) appears to be infinite. At parsing time it is fini...
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How do I use .toLocaleTimeString() without displaying seconds?

I'm currently attempting to display the user's time without displaying the seconds. Is there a way I can do this using Javascript's .toLocaleTimeString()? ...
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How do I add custom field to Python log format string?

...me__) syslog = logging.StreamHandler() formatter = logging.Formatter('%(asctime)s %(app_name)s : %(message)s') syslog.setFormatter(formatter) logger.setLevel(logging.INFO) logger.addHandler(syslog) logger = logging.LoggerAdapter(logger, extra) logger.info('The sky is so blue') logs (something lik...
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How to extract numbers from a string and get an array of ints?

...[ and ] delimites a set of characters to be single matched, i.e., only one time in any order ^ Special identifier used in the beginning of the set, used to indicate to match all characters not present in the delimited set, instead of all characters present in the set. + Between one and unlimited tim...
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switch / pattern matching idea

...een looking at F# recently, and while I'm not likely to leap the fence any time soon, it definitely highlights some areas where C# (or library support) could make life easier. ...