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How can I pair socks from a pile efficiently?
...ce comparison is not required.
Case 3: The number of combinations is not known in advance (general case).
We have to do comparison to check whether two socks come in pair. Pick one of the O(n log n) comparison-based sorting algorithms.
However in real life when the number of socks is relatively s...
How do cache lines work?
...eval process can take ~90 nanoseconds, or ~250 clock cycles (from the CPU knowing the address to the CPU receiving data).
By contrast, a hit in L1 cache has a load-use latency of 3 or 4 cycles, and a store-reload has a store-forwarding latency of 4 or 5 cycles on modern x86 CPUs. Things are simila...
What are the differences between poll and select?
...is library function both have this limit. But I
see that BSD/OS 2.1 has now been coded to avoid this limit, so it's
doable, just a small matter of programming. :-) Someone should file a
Solaris bug report on this, and see if it ever gets fixed.
With poll(), however, the user must alloc...
How to test my servlet using JUnit
I have created a web system using Java Servlets and now want to make JUnit testing. My dataManager is just a basic piece of code that submits it to the database. How would you test a Servlet with JUnit?
...
Difference between sh and bash
...we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them.
12 Answ...
Why maven? What are the benefits? [closed]
...for it in your
dependency management... there is no
'I'll just do this now and fix it
later' implementations.
Dependency Management is clearly declared. with the dependency
management mechanism you have to try
to screw up your jar
versioning...there is none of the
classic problem of ...
How to highlight text using javascript
...erate through the text elements; can't be done with regEx AFAIK. 2: Don't know mark.js, but I would avoid everything that does a jQuery.each, because that is damn slow.
– Stefan Steiger
Jun 2 '16 at 16:57
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Why are floating point numbers inaccurate?
...ly in decimal; for more detail, see: 675539944105574 / 4503599627370496.)
Now that we've transformed the third component into a fractional number, adding 1 gives the true mantissa.
Recapping the Components
Sign (first component): 0 for positive, 1 for negative
Exponent (middle component): Subtra...
Why are mutable structs “evil”?
...
Developing in C#, you usually need mutability ever now and then - especially with your Business Model, where you want streaming etc. to work smoothly with existing solutions. I wrote an article on how to work with mutable AND immutable data, solving most issues around mutabil...
How to split a delimited string in Ruby and convert it to an array?
... It splits a string into an array of its characters.
hmmm, I just realize now that in the original question the string contains commas, so my answer is not really helpful ;-(..
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