大约有 7,000 项符合查询结果(耗时:0.0145秒) [XML]
Git pull without checkout?
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84
I had the very same issue with necessity to commit or stash current feature changes, checkout m...
What would cause an algorithm to have O(log n) complexity?
...ingly, we also have that log2 16 = 4. Hmmm... what about 128?
128 / 2 = 64
64 / 2 = 32
32 / 2 = 16
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
This took seven steps, and log2 128 = 7. Is this a coincidence? Nope! There's a good reason for this. Suppose that we divide a number n by 2 i...
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
...coded data starts and ends with the tags:
-----BEGIN PRIVATE KEY-----
BASE64 ENCODED DATA
-----END PRIVATE KEY-----
Within the base64 encoded data the following DER structure is present:
PrivateKeyInfo ::= SEQUENCE {
version Version,
algorithm AlgorithmIdentifier,
Private...
MySQL Great Circle Distance (Haversine formula)
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Bo Persson
84k1919 gold badges134134 silver badges196196 bronze badges
answered Aug 29 '11 at 4:08
Abdul ManafAb...
Why is processing a sorted array faster than processing an unsorted array?
... of data[].)
Benchmarks: Core i7 920 @ 3.5 GHz
C++ - Visual Studio 2010 - x64 Release
// Branch - Random
seconds = 11.777
// Branch - Sorted
seconds = 2.352
// Branchless - Random
seconds = 2.564
// Branchless - Sorted
seconds = 2.587
Java - NetBeans 7.1.1 JDK 7 - x64
// Branch - Random
sec...
In-Place Radix Sort
...or length 2, with "ACGT" that's 16 states, or 4 bits.
For length 3, that's 64 states, which can be encoded in 6 bits. So it looks like 2 bits for each letter in the sequence, or about 32 bits for 16 characters like you said.
If there is a way to reduce the number of valid 'words', further compressi...
Maximum length for MD5 input/output
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The length of the message is unlimited.
Append Length
A 64-bit representation of b (the length of the message before the
padding bits were added) is appended to the result of the previous
step. In the unlikely event that b is greater than 2^64, then only
the low-ord...
How to exclude a directory in find . command
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84
It still traverses all of the unwanted directory, though. I'm adding my own answer. :-)
– Daniel C. Sobral
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What's the difference between “STL” and “C++ Standard Library”?
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84
There is no one answer that's really correct. Alexander Stepanov developed a library he called ...
How can I check for NaN values?
...an too. If you constructed an actual NumPy NaN with something like np.float64('nan'), then you'd get np.float64('nan') is not np.float64('nan') too.
– user2357112 supports Monica
Apr 22 at 10:09
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