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Can hash tables really be O(1)?
It seems to be common knowledge that hash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations that come to mind:
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How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
I'm getting a datetime string in a format like "2009-05-28T16:15:00" (this is ISO 8601, I believe). One hackish option seems to be to parse the string using time.strptime and passing the first six elements of the tuple into the datetime constructor, like:
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Get first day of week in PHP?
Given a date MM-dd-yyyy format, can someone help me get the first day of the week?
38 Answers
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How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...: Now that it's 2016 I'd use PowerShell for this unless there's a really compelling backwards-compatible reason for it, particularly because of the regional settings issue with using date . See @npocmaka's https://stackoverflow.com/a/19799236/8479
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How to Customize the time format for Python logging?
I am new to Python's logging package and plan to use it for my project. I would like to customize the time format to my taste. Here is a short code I copied from a tutorial:
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Weighted random numbers
I'm trying to implement a weighted random numbers. I'm currently just banging my head against the wall and cannot figure this out.
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ASP.NET MVC How to convert ModelState errors to json
How do you get a list of all ModelState error messages? I found this code to get all the keys:
( Returning a list of keys with ModelState errors )
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Meaning of acronym SSO in the context of std::string
In a C++ question about optimization and code style , several answers referred to "SSO" in the context of optimizing copies of std::string . What does SSO mean in that context?
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Understand the “Decorator Pattern” with a real world example
I was studying the Decorator Pattern as documented in GOF .
14 Answers
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Formatting “yesterday's” date in python
I need to find "yesterday's" date in this format MMDDYY in Python.
6 Answers
6
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