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Determining complexity for recursive functions (Big O notation)
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362
The time complexity, in Big O notation, for each function:
int recursiveFun1(int n)
{
if ...
Convert bytes to a string
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3949
You need to decode the bytes object to produce a string:
>>> b"abcde"
b'abcde'
# u...
MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
I have been running MAMP Pro 3.05 successfully in Yosemite up to DP4 on a partition that was a clean install of Yosemite.
1...
How to split a sequence into two pieces by predicate?
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By using partition method:
scala> List(1,2,3,4).partition(x => x % 2 == 0)
res0: (List[Int], List[Int]) = (List(2, 4),List(1, 3))
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String formatting named parameters?
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In Python 2.6+ and Python 3, you might choose to use the newer string formatting method.
print('<a href="{0}">{0}</a>'.format(my_url))
which saves you from repeating the argument, or
print('<a href="{url}">{url}</a>'.format...
How to initialize all members of an array to the same value in Swift?
...ue like this:
With old Swift version:
var threeDoubles = [Double](count: 3, repeatedValue: 0.0)
Since Swift 3.0:
var threeDoubles = [Double](repeating: 0.0, count: 3)
which would give:
[0.0, 0.0, 0.0]
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Integer division with remainder in JavaScript?
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1309
For some number y and some divisor x compute the quotient (quotient) and remainder (remainder)...
Count number of records returned by group by
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13 Answers
13
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If list index exists, do X
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edited Dec 12 '16 at 0:03
Dimitris Fasarakis Hilliard
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Impossible to Install PG gem on my mac with Mavericks
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253
If you want to avoid using MacPorts, you can download the Postgres App and place it into the App...
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