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uppercase first character in a variable with bash
...instead of a subshell.
– Steve
Apr 13 '16 at 23:57
3
This answer assumes the input is all lower c...
Given a number, find the next higher number which has the exact same set of digits as the original n
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38 Answers
38
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How to implement a queue with three stacks?
...SUMMARY
O(1) algorithm is known for 6 stacks
O(1) algorithm is known for 3 stacks, but using lazy evaluation which in practice corresponds to having extra internal data structures, so it does not constitute a solution
People near Sedgewick have confirmed they are not aware of a 3-stack solution wi...
byte + byte = int… why?
...re first cast to integers and the result of addition of two integers is a (32-bit) integer.
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Broken references in Virtualenvs
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375
I found the solution to the problem here, so all credit goes to the author.
The gist is that ...
How to git commit a single file/directory
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360
Your arguments are in the wrong order. Try git commit -m 'my notes' path/to/my/file.ext, or if...
Turning multi-line string into single comma-separated
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93
You can use awk and sed:
awk -vORS=, '{ print $2 }' file.txt | sed 's/,$/\n/'
Or if you want ...
Is a GUID unique 100% of the time?
...D is not
guaranteed to be unique, the total
number of unique keys (2128 or
3.4×1038) is so large that the probability of the same number being
generated twice is very small. For
example, consider the observable
universe, which contains about 5×1022
stars; every star could then have
6.8×1015 unive...
What is the “Execute Around” idiom?
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3
So it's like in C where you have a function that you pass in a function pointer to do some work?
– Paul Tomblin
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Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
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130
What is the default timeout that get uses?
The default timeout is None, which means it'll ...
