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Difference between Divide and Conquer Algo and Dynamic Programming
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answered Nov 24 '12 at 5:55
OneMoreErrorOneMoreError
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
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Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting lis...
`elif` in list comprehension conditionals
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Python's conditional expressions were designed exactly for this sort of use-case:
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Convert list of dictionaries to a pandas DataFrame
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edited Jul 22 at 17:24
cs95
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How to compare two floating point numbers in Bash?
...e conveniently using Bash's numeric context:
if (( $(echo "$num1 > $num2" |bc -l) )); then
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fi
Explanation
Piping through the basic calculator command bc returns either 1 or 0.
The option -l is equivalent to --mathlib; it loads the standard math library.
Enclosing the whole expression ...
Flatten an Array of Arrays in Swift
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Swift >= 3.0
reduce:
let numbers = [[1,2,3],[4],[5,6,7,8,9]]
let reduced = numbers.reduce([], +)
flatMap:
let numbers = [[1,2,3],[4],[5,6,7,8,9]]
let flattened = numbers.flatMap { $0 }
joined:
let numbers = [[1,2,3],[4],[5,6,7,8,9]]
let joined = Array(number...
How do I install Python OpenCV through Conda?
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Why is there no Tree class in .NET?
...ook at C5? It's super-handy and they have several tree implementations (1, 2, 3).
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Is Big O(logn) log base e?
...he derivation of the O() polynomial, in the case of binary search, only log2 is correct. I assume this distinction was the intuitive inspiration for your question to begin with.
Also, as a matter of my opinion, writing O(log2 N) is better for your example, because it better communicates the deriv...
Logging in Scala
...appers around a Java logging framework (slf4j, log4j etc), but as of March 2015, the surviving log libraries are all slf4j. These log libraries provide some sort of log object to which you can call info(...), debug(...), etc. I'm not a big fan of slf4j, but it now seems to be the predominant logging...