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boost::flat_map and its performance compared to map and unordered_map
...uded a bug: they actually tested ordered insertion, which exhibited a very fast behavior for the flat maps.
I left those results later down this page because they are interesting.
This is the correct test:
I have checked the implementation, there is no such thing as a deferred sort implemented i...
Converting a List to a comma separated string
...
From what I saw online(quick search) String.Join is faster than using a StringBuilder.
– Yuriy Faktorovich
Oct 6 '09 at 23:51
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How to convert int to char with leading zeros?
...so I no longer have the original test. I just run another test on a really fast server, and got 32 seconds to format 1 million numbers. Not the end of the world, but solution posted by Nguyen Tran does it in 1 second. To test simply create a loop from @i int = 0 to 10000000.
– ...
How to use timeit module
...ort timeit
>>> setup = '''
import random
random.seed('slartibartfast')
s = [random.random() for i in range(1000)]
timsort = list.sort
'''
>>> print min(timeit.Timer('a=s[:]; timsort(a)', setup=setup).repeat(7, 1000))
0.334147930145
Note that the series of statements makes a fr...
Scroll back to the top of scrollable div
...oth animation is like this
$("#containerDiv").animate({ scrollTop: 0 }, "fast");
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How do I update a GitHub forked repository?
...am/master
# Merge upstream's master into our own
Updating a422352..5fdff0f
Fast-forward
README | 9 -------
README.md | 7 ++++++
2 files changed, 7 insertions(+), 9 deletions(-)
delete mode 100644 README
create mode 100644 README.md
If your local br...
Correct way to pause Python program
... raw_input() on Python 2.x) to prompt the user, rather than a time delay. Fast readers won't want to wait for a delay, slow readers might want more time on the delay, someone might be interrupted while reading it and want a lot more time, etc. Also, if someone uses the program a lot, he/she may be...
When would you use a List instead of a Dictionary?
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When you don't need fast lookups on key - maintaining the hashtable used by Dictionary has a certain overhead.
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What is the advantage of GCC's __builtin_expect in if else statements?
...ect is usually that all things are not equal... there is a slow path and a fast path, and you as the programmer happen to know which path is most likely to be used.
– Adam Kaplan
Sep 20 '17 at 0:47
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iPhone Simulator suddenly started running very slow
...ed down to compare to the source now? What has changed between when it was fast and now?
– Metabble
Mar 11 '13 at 21:18
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