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How to merge two sorted arrays into a sorted array? [closed]
... O(n) algorithm but in literally single statement in a single while loop!
If two arrays are of approximately same size then constant for O(n) is same. However if arrays are really imbalanced then versions with System.arraycopy would win because internally it can do this with single x86 assembly ins...
How do I remove the first characters of a specific column in a table?
In SQL, how can I remove the first 4 characters of values of a specific column in a table? Column name is Student Code and an example value is ABCD123Stu1231 .
I want to remove first 4 chars from my table for all records
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What does the variable $this mean in PHP?
... created by the interpreter for you, that contains an array of variables.
If you call $this inside a normal method in a normal class, $this returns the Object (the class) to which that method belongs.
It's possible for $this to be undefined if the context has no parent Object.
php.net has a b...
Assign format of DateTime with data annotations?
... @Steven: Can you try removing [DataType(DataType.DateTime)] if you haven't already?
– David Fox
Mar 9 '11 at 22:35
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How do I combine two data frames?
...g to concatenate two columns of the same name o_O
– lifelonglearner
Apr 1 at 2:13
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scopes with lambda and arguments in Rails 4 style?
I'm wondering how the following is done in Rails 4 or if I just use the Rails 3 approach for using a lambda that can pass an argument the same way with 4 as I do with 3.
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What is the difference between an annotated and unannotated tag?
If I want to tag the current commit. I know both of the following command lines work:
3 Answers
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Sorting Python list based on the length of the string
...n(y)))
Note that cmp is a builtin function such that cmp(x, y) returns -1 if x is less than y, 0 if x is equal to y, and 1 if x is greater than y.
Of course, you can instead use the key parameter:
xs.sort(key=lambda s: len(s))
This tells the sort method to order based on whatever the key function ...
LINQ Ring: Any() vs Contains() for Huge Collections
Given a huge collection of objects, is there a performance difference between the the following?
4 Answers
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Reference list item by index within Django template?
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If you're willing to create a custom tag, you can do a lot more. Here we're just working with the built-in stuff.
– Mike DeSimone
Apr 16 '15 at 13:55
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