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What would cause an algorithm to have O(log n) complexity?
...o 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 times. Then...
disable maven download progress indication
...date
The documentation about batch mode see https://maven.apache.org/ref/3.6.1/maven-embedder/cli.html
Starting with Maven 3.6.1 (released 2019-04-04) you can use --no-transfer-progress will suppress the output of downloading messages at all without suppressing the other output.
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Difference between timestamps with/without time zone in PostgreSQL
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How do I select a merge strategy for a git rebase?
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In Python, how can you load YAML mappings as OrderedDicts?
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Update: In python 3.6+ you probably don't need OrderedDict at all due to the new dict implementation that has been in use in pypy for some time (although considered CPython implementation detail for now).
Update: In python 3.7+, the insertion...
How to select Python version in PyCharm?
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edited Dec 30 '14 at 21:56
Eric Leschinski
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How to programmatically cause a core dump in C/C++
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edited May 23 '17 at 11:54
Community♦
111 silver badge
answered Jun 11 '09 at 3:24
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What is the difference between `sorted(list)` vs `list.sort()`?
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sorted() returns a new sorted list, leaving the original list unaffected. list.sort() sorts th...
Retrieving parameters from a URL
...lparse.urlparse(url)
print urlparse.parse_qs(parsed.query)['def']
Python 3:
import urllib.parse as urlparse
from urllib.parse import parse_qs
url = 'http://foo.appspot.com/abc?def=ghi'
parsed = urlparse.urlparse(url)
print(parse_qs(parsed.query)['def'])
parse_qs returns a list of values, so the...