大约有 15,000 项符合查询结果（耗时：0.0324秒） [XML]
Computational complexity of Fibonacci Sequence
...ons. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence:
...
What does a b prefix before a python string mean?
...
This is Python3 bytes literal. This prefix is absent in Python 2.5 and older (it is equivalent to a plain string of 2.x, while plain string of 3.x is equivalent to a literal with u prefix in 2.x). In Python 2.6+ it is equivalent to a plain string, for compatibility ...
Simple logical operators in Bash
...all.
(…) parentheses indicate a subshell. What's inside them isn't an expression like in many other languages. It's a list of commands (just like outside parentheses). These commands are executed in a separate subprocess, so any redirection, assignment, etc. performed inside the parentheses has ...
Difference between Lookup() and Dictionary(Of list())
...esent in a lookup, you get an empty sequence back instead of a KeyNotFoundException. (Hence there's no TryGetValue, AFAICR.)
They're likely to be equivalent in efficiency - the lookup may well use a Dictionary<TKey, GroupingImplementation<TValue>> behind the scenes, for example. Choose...
Nginx 403 forbidden for all files
I have nginx installed with PHP-FPM on a CentOS 5 box, but am struggling to get it to serve any of my files - whether PHP or not.
...
How do you extract a column from a multi-dimensional array?
Does anybody know how to extract a column from a multi-dimensional array in Python?
20 Answers
...
Declare and Initialize String Array in VBA
...d 3) VBA doesn't have String array initializer. But you can use Split for example.
– Eldar Agalarov
Apr 18 '16 at 20:28
...
Rotate axis text in python matplotlib
I can't figure out how to rotate the text on the X Axis. Its a time stamp, so as the number of samples increase, they get closer and closer until they overlap. I'd like to rotate the text 90 degrees so as the samples get closer together, they aren't overlapping.
...
Rebase array keys after unsetting elements
...
+1. I note that the manual does not explicitly state that ordering will be maintained, but I can't see why it wouldn't be.
– Lightness Races in Orbit
May 9 '11 at 22:20
...
Is it good style to explicitly return in Ruby?
... it" (a "Pythonic" way) when it comes to style, I'm wondering if the same exists for Ruby. I've been using my own style guidelines but I'm thinking about releasing my source code, and I'd like it to adhere to any unwritten rules that might exist.
...