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How can I pair socks from a pile efficiently?
...pile and distribute it by some other metric (e.g. pattern) into the second set of piles
Recursively apply this scheme until you have distributed all socks onto very small piles that you can visually process immediately
This kind of recursive hash partitioning is actually being done by SQL Server w...
Quick Sort Vs Merge Sort [duplicate]
... than merge sort when the data is stored in memory. However, when the data set is huge and is stored on external devices such as a hard drive, merge sort is the clear winner in terms of speed. It minimizes the expensive reads of the external drive and also lends itself well to parallel computing.
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Directory-tree listing in Python
How do I get a list of all files (and directories) in a given directory in Python?
20 Answers
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Get the index of the nth occurrence of a string?
...ual(-1, Input.IndexOfNth("Test", 0, 3));
}
/* Test the offset case (in and out of bounds) */
[Test]
public void TestFirstWithOneOffset()
{
Assert.AreEqual(4, Input.IndexOfNth("Test", 4, 1));
}
[Test]
public void TestFirst...
Parse usable Street Address, City, State, Zip from a string [closed]
... data out from the string.
It's meant for the case when you need to get a set of data mostly in the right fields, or want to provide a shortcut to data entry (letting users paste an address into a textbox rather than tabbing among multiple fields). It is not meant for verifying the deliverability o...
“Cloning” row or column vectors
... the second section ("repeating columns"), can you explain what the second set of square bracket does, i.e. [[1,2,3]]
– Ant
Jan 9 '17 at 0:51
...
Handling InterruptedException in Java
...ur method. You should therefore log the fact an interruption took place by setting the interrupted flag: Thread.currentThread().interrupt()
Example: The user has asked to print a sum of two values. Printing "Failed to compute sum" is acceptable if the sum can't be computed (and much better than...
How to debug a single thread in Visual Studio?
...n the breakpoints window (select all breakpoints).
Right click and select "Settings...".
Check "Conditions" and select "Filter" in the dropdown
Enter "ThreadId=(current thread id)".
So all threads are executed, but the debugger hits on the current thread only.
...
Border length smaller than div width?
...nge left: 0 with right: 0
if you need a center-aligned border just simply set left: 50px;
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Single script to run in both Windows batch and Linux Bash?
...t forget that any use of $? must be before your next colon : because : resets $? to 0.
:; echo "Hi, I’m ${SHELL}."; exit $?
@ECHO OFF
ECHO I'm %COMSPEC%
A very contrived example of guarding $?:
:; false; ret=$?
:; [ ${ret} = 0 ] || { echo "Program failed with code ${ret}." >&2; exit 1; ...