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What is a Context Free Grammar?
...s the set of all binary strings of length three, {000, 001, 010, 011, 100, 101, 110, 111}.
Grammars work by defining transformations you can make to construct a string in the language described by a grammar. Grammars will say how to transform a start symbol (usually S) into some string of symbols. ...
What is the difference between .*? and .* regular expressions?
... difference between greedy and non-greedy quantifiers.
Consider the input 101000000000100.
Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * will match nothing, but then will try to match ex...
Do you put unit tests in same project or another project?
...
101
In my opinion, unit tests should be placed in a separate assembly from production code. Here ...
What are some uses of decltype(auto)?
...arbitrary parens solve ambiguity, but they introduce it. Most vexing for CS101 professors I imagine.
– John P
Jan 1 '18 at 3:47
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How can I get query string values in JavaScript?
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101
@Nick: Anything after the hash resides in the window.location.hash property, which is separate from the window.location.search property. ...
What is “2's Complement”?
...itives. 23-1 = 7.
For negatives:
1111 - negative one
1110 - negative two
1101 - negative three
1100 to 1000 - negative four to negative eight
Note that you get one extra value for negatives (1000 = -8) that you don't for positives. This is because 0000 is used for zero. This can be considered as N...
Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
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PhilippPhilipp
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Numpy first occurrence of value greater than existing value
...r than 2
first_index_numba
--> -1
first_index_using_searchsorted
--> 101
first_index_using_where
--> index 0 is out of bounds for axis 0 with size 0
Searchsorted, argmax, and numba simply return a wrong value. However searchsorted and numba return an index that is not a valid index for th...
What are the differences between Abstract Factory and Factory design patterns?
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101
Difference between AbstractFactory and Factory design patterns are as follows:
Factory Metho...