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How to find time complexity of an algorithm
...y: accessing any element
fixed-size stack: push and pop methods
fixed-size queue: enqueue and dequeue methods
4. O(n) Linear Time
An algorithm is said to run in linear time if its time execution is directly proportional to the input size, i.e. time grows linearly as input size increases.
Consider t...
Terminating a script in PowerShell
...g ran using this specific method of running a script. The same is true for batch files and the Command Line window.
Return: This will return to the previous call point. If you call this command from a script (outside any functions) it will return to the shell. If you call this command from the shell...
How to configure MongoDB Java driver MongoOptions for production use?
...et db connection" exception. It will throw this exception once this thread queue exceeds the threadsAllowedToBlockForConnectionMultiplier value. For example, if the connectionsPerHost is 10 and this value is 5 up to 50 threads can block before the aforementioned exception is thrown.
If you expect b...
How do I check if a given string is a legal/valid file name under Windows?
I want to include a batch file rename functionality in my application. A user can type a destination filename pattern and (after replacing some wildcards in the pattern) I need to check if it's going to be a legal filename under Windows. I've tried to use regular expression like [a-zA-Z0-9_]+ but ...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...ors, Intel's "micro-ops fusion" that try to group instructions into larger batches of simultaneous work (kind of like the VLIW/Itanium titanic). There are even cache boundaries that could make the code run faster for god-knows-why if it's bigger (maybe the cache controller slots it more intelligentl...
source of historical stock data [closed]
...ed from Yahoo directly to your database (if your database does not support batch inserts of CSV data, like SQLite). Otherwise, inserting the data is a one-liner... just batch insert the CSV into your database.
You can read more about the formatting of the url here: http://www.gummy-stuff.org/Yahoo-...
Display a tooltip over a button using Windows Forms
...rgs e)
{
ToolTip toolTip1 = new ToolTip();
toolTip1.AutoPopDelay = 5000;
toolTip1.InitialDelay = 1000;
toolTip1.ReshowDelay = 500;
toolTip1.ShowAlways = true;
toolTip1.SetToolTip(this.button1, "My button1");
toolTip1.SetToolTip(this.checkBox1, "My checkBox1");
}
...
Working with README.md on github.com [closed]
...$ pip install grip
And to use it, simply:
$ grip
Then visit localhost:5000 to view the readme.md file at that location.
You can also specify your own file:
$ grip CHANGES.md
And change the port:
$ grip 8080
Or combine the previous two:
$ grip CHANGES.md 8080
You can even render GitHub...
In which order should floats be added to get the most precise result?
...s too large for the next number, then put the accumulator onto a temporary queue and start the accumulator with the next number. Continue until you exhaust the original list.
You repeat the process with the temporary queue (having sorted it) and with a possibly larger difference in exponent.
I th...
When to use thread pool in C#? [closed]
... suits your needs:
Task Parallel Library (.NET Framework
4.0)
ThreadPool.QueueUserWorkItem
Asynchronous Delegates
BackgroundWorker
This e-book explains these all and advises when to use them vs. create your own thread.
s...