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Algorithm for creating a school timetable
...ondering if there are known solutions for algorithm of creating a school timetable. Basically, it's about optimizing "hour-dispersion" (both in teachers and classes case) for given class-subject-teacher associations. We can assume that we have sets of classes, lesson subjects and teachers associate...
Getting the error “Missing $ inserted” in LaTeX
...aused by the underscores and bars. These characters in LaTeX have special meaning in math mode (which is delimited by $ characters). Try escaping them; e.g. update\_element instead of update_element.
However, if you're trying to display code, a better solution would be to use the \verb command, wh...
How to get first character of a string in SQL?
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LEFT(colName, 1) will also do this, also. It's equivalent to SUBSTRING(colName, 1, 1).
I like LEFT, since I find it a bit cleaner, but really, there's no difference either way.
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CSS selector for “foo that contains bar”? [duplicate]
...called a parent selector. CSS has none; they have been proposed multiple times but I know of no existing or forthcoming standard including them. You are correct that you would need to use something like jQuery or use additional class annotations to achieve the effect you want.
Here are some similar...
String comparison: InvariantCultureIgnoreCase vs OrdinalIgnoreCase? [duplicate]
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What is the etymology of 'slug'? [closed]
Is slug a completely arbitrary word? Or does it stand for something? I used the word in a conversation with someone and when they asked me why it's called that I realized I didn't know.
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How to declare strings in C [duplicate]
Can anyone explain me what is a difference between these lines of code
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How to get root view controller?
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This is a lifesaver. Thank you! Took me months to find this piece of delicious code!
– ItsMeDom
Feb 25 '19 at 15:43
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In PHP, how to detect the execution is from CLI mode or through browser ? [duplicate]
... my PHPcron files and the files which are accessing through the browser. Some part of the code, I need only for non cron files. How can I detect whether the execution is from CLI or through browser (I know it can be done by passing some arguments with the cron files but I dont have access to crontab...
How to convert byte array to string [duplicate]
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