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Red black tree over avl tree
...od insights on differences, similarities, performance, etc.
Here's a quote from the article:
RB-Trees are, as well as AVL trees, self-balancing. Both of them provide O(log n) lookup and insertion performance.
The difference is that RB-Trees guarantee O(1) rotations per insert operation. That is wha...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'
...
Run: brew info mysql
And follow the instructions. From the description in the formula:
Set up databases to run AS YOUR USER ACCOUNT with:
unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpd...
How to check if two arrays are equal with JavaScript? [duplicate]
...,b) {
if (a.size!=b.size)
return false;
var aPairs = Array.from(a);
var bPairs = Array.from(b);
aPairs.sort((x,y) => x[0]<y[0]);
bPairs.sort((x,y) => x[0]<y[0]);
for(var i=0; i<a.length; i++)
if (!deepEquals(aPairs[i][0],bPairs[i][0]) || !deepEq...
Reason to Pass a Pointer by Reference in C++?
... NULL pointer anymore. This is a case where you modify an external pointer from a function, so it would have a reference to pointer in its signature:
void insert(Node* &list)
{
...
if(!list) list = new Node(...);
...
}
There's an example in this question.
...
How to convert a normal Git repository to a bare one?
...cd repo.git
git config --bool core.bare true
Note that this is different from doing a git clone --bare to a new location (see below).
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Using String Format to show decimal up to 2 places or simple integer
...be changed to ,.
Answer to original question:
The simpliest solution comes from @Andrew (here). So I personally would use something like this:
var number = 123.46;
String.Format(number % 1 == 0 ? "{0:0}" : "{0:0.00}", number)
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Are getters and setters poor design? Contradictory advice seen [duplicate]
...
This, 1k times over. Don't take the state data from the object, change it somewhere else, and put it back in. Give it all the data it needs to do the work itself. That's like OOP 101.
– DanMan
Nov 25 '14 at 12:52
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The written versions of the logical operators
...d operators, x | y is sufficiently visually distinct (in monospaced fonts) from x || y, but I do find the ! in e.g. if (!f(xyz) && ... easier to miss than if (not f(xyz) && ....
– Tony Delroy
Aug 20 '15 at 6:00
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Convert string to symbol-able in ruby
...o be able to do and undo an operation. .to_sym can convert one direction (from string to symbol), and .to_s can convert (from symbol to string). and if you are dealing with an array consider .map(&:to_sym) or .map(&to_s) to convert all elements.
– jasonleonhard
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Removing duplicates from a list of lists
...ttleneck, keeping a set of tuples all the time and getting a list of lists from it only if and where needed, might be faster overall, for example.
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