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What happens when a computer program runs?
... It is commonly used for data structures that you allocate at runtime (in C++, using new and delete, and malloc and friends in C, etc).
The stack and heap, on the x86 architecture, both physically reside in your system memory (RAM), and are mapped through virtual memory allocation into the process...
Using a dictionary to count the items in a list [duplicate]
...ation of a multiset which is not an uncommon data structure IMO. In fact, C++ has an implementation in the STL called std::multiset (also std::tr1::unordered_multiset) so Guido is not alone in his opinion of its importance.
– awesomo
Oct 18 '11 at 3:07
...
Initializing a two dimensional std::vector
...BER, 4));
I should also mention uniform initialization was introduced in C++11, which permits the initialization of vector, and other containers, using {}:
std::vector<std::vector<int> > fog { { 1, 1, 1 },
{ 2, 2, 2 } };
...
Linux: compute a single hash for a given folder & contents?
...red I/O block size : 4096 bytes
Blocks allocated : 200
Last status change : Tue, 21 Nov 17 21:28:18 +0530
Last file access : Thu, 28 Dec 17 00:53:27 +0530
Last file modification : Tue, 21 Nov 17 21:28:18 +0530
Hash ...
Get current date in milliseconds
...language you desire. Here is the list -
ActionScript (new Date()).time
C++ std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count()
C#.NET DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()
Clojure (System/currentTimeMillis)
Excel / Go...
adding noise to a signal in python
... rnd_state = np.random.RandomState(random_state)
time = np.linspace(0, 200, num=2000)
pure = 20*np.sin(time/(2*np.pi))
# concatenate on the second axis; this will allow us to mix different data
# distribution
data = np.c_[pure]
mu = np.mean(data)
sd = np.std(data)
l...
C# switch statement limitations - why?
...ah; break;
But of little use if they aren't:
case 10: blah; break;
case 200: blah; break;
case 3000: blah; break;
(You'd need a table ~3000 entries in size, with only 3 slots used)
With non-adjacent expressions, the compiler may start to perform linear if-else-if-else checks.
With larger non-...
Algorithm to return all combinations of k elements from n
...
200
In C#:
public static IEnumerable<IEnumerable<T>> Combinations<T>(this IEnu...
How can I obfuscate (protect) JavaScript? [closed]
...
ClaudiuClaudiu
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NTFS performance and large volumes of files and directories
...83 16124 14328 14347
160 2.20 15978 16184 11325 11128
200 2.30 16364 16052 9866 9678
210 2.32 16143 15977 9348 9547
220 2.34 16290 15909 9094 9038
230 2.36 16048 15930 9010 9094
240 2.38 15096 15725 8654 9143
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