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Algorithm to find Largest prime factor of a number
... very fast in general.
The best known method for factoring numbers up to 100 digits long is the Quadratic sieve. As a bonus, part of the algorithm is easily done with parallel processing.
Yet another algorithm I've heard of is Pollard's Rho algorithm. It's not as efficient as the Quadratic Sieve i...
Binding ConverterParameter
...
305
The ConverterParameter property can not be bound because it is not a dependency property.
Sinc...
In Python, how do I use urllib to see if a website is 404 or 200?
...a=urllib.urlopen('http://www.google.com/asdfsf')
>>> a.getcode()
404
>>> a=urllib.urlopen('http://www.google.com/')
>>> a.getcode()
200
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difference between each.with_index and each_with_index in Ruby?
...index|
puts "#{index}: #{value}"
end
Outputs:
2: foo
3: bar
4: baz
0: foo
1: bar
2: baz
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How do I get an empty array of any size in python?
...
If by "array" you actually mean a Python list, you can use
a = [0] * 10
or
a = [None] * 10
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Generate a random number in the range 1 - 10
...way to tell pg's random() function to get me only numbers between 1 and 10?
7 Answers
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'size_t' vs 'container::size_type'
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108
The standard containers define size_type as a typedef to Allocator::size_type (Allocator is a t...
Add column with number of days between dates in DataFrame pandas
...'] - df['B']
In [14]: df
Out[14]:
A B C
one 2014-01-01 2014-02-28 -58 days
two 2014-02-03 2014-03-01 -26 days
Note: ensure you're using a new of pandas (e.g. 0.13.1), this may not work in older versions.
...
Deleting elements from std::set while iterating
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180
This is implementation dependent:
Standard 23.1.2.8:
The insert members shall not affect th...