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Explain the use of a bit vector for determining if all characters are unique
I am confused about how a bit vector would work to do this (not too familiar with bit vectors). Here is the code given. Could someone please walk me through this?
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Does PowerShell support constants?
I would like to declare some integer constants in PowerShell.
6 Answers
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What is the correct way of using C++11's range-based for?
What is the correct way of using C++11's range-based for ?
4 Answers
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Add .gitignore to gitignore
Is it possible to add the .gitignore file to .gitignore itself?
6 Answers
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Listing all extras of an Intent
For debugging reasons I want to list all extras (and their values) of an Intent. Now, getting the keys isn't a problem
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PHP Fatal error: Call to undefined function json_decode()
Apache is logging PHP Fatal error: Call to undefined function json_decode() . After some googling, it seems this problem is a result of not having the latest version of php. Oddly, running php --version ouputs
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What does Expression.Quote() do that Expression.Constant() can’t already do?
...he earlier question “What is the purpose of LINQ's Expression.Quote method?” , but if you read on you will see that it doesn’t answer my question.
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What C++ Smart Pointer Implementations are available?
This is a spin-off from a garbage collection thread where what I thought was a simple answer generated a lot of comments about some specific smart pointer implementations so it seemed worth starting a new post.
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What is an uninterruptible process?
Sometimes whenever I write a program in Linux and it crashes due to a bug of some sort, it will become an uninterruptible process and continue running forever until I restart my computer (even if I log out). My questions are:
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How can I write a regex which matches non greedy? [duplicate]
I need help about regular expression matching with non-greedy option.
3 Answers
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