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How to find the foreach index?
...312,'sasas'); unset($a[3]); foreach ($a as $k=>$v) print "\$k= $k and \$v = $v"; ?>
– Milen A. Radev
Sep 27 '08 at 0:21
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What is the argument for printf that formats a long?
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On most platforms, long and int are the same size (32 bits). Still, it does have its own format specifier:
long n;
unsigned long un;
printf("%ld", n); // signed
printf("%lu", un); // unsigned
For 64 bits, you'd want a long long:
long long n;
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Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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Why is GHC so large/big?
... have to decide up front whether you're going to link dynamically or not. And we need more changes (e.g. to Cabal and the package system, amongst other things) before this is really practical.
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Disabling and enabling a html input button
... jquery 1.6.1 changes. As a suggestion, always use the latest jquery files and the prop() method.
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How do I run a batch script from within a batch script?
...ile.bat
This will block (pause) the execution of the current batch file, and it will wait until the CALLed one completes.
If you don't want it to block, use START instead.
Get the nitty-gritty details by using CALL /? or START /? from the cmd prompt.
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How do I choose grid and block dimensions for CUDA kernels?
This is a question about how to determine the CUDA grid, block and thread sizes. This is an additional question to the one posted here .
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In Python, how do I read the exif data for an image?
...r python3 use Pillow. It is a fork of PIL, which is still being developed, and has a python3 compatible version
– Mzzl
Jan 15 '14 at 9:54
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builder for HashMap
...tations of those factory methods are that they:
can't hold nulls as keys and/or values (if you need to store nulls take a look at other answers)
produce immutable maps
If we need mutable map (like HashMap) we can use its copy-constructor and let it copy content of map created via Map.of(..)
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How can I find out the total physical memory (RAM) of my linux box suitable to be parsed by a shell
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If you're interested in the physical RAM, use the command dmidecode. It gives you a lot more information than just that, but depending on your use case, you might also want to know if the 8G in the system come from 2x4GB sticks or 4x2GB sticks.
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