大约有 30,000 项符合查询结果(耗时:0.0401秒) [XML]
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
... tests already available:
http://www.theeggeadventure.com/wikimedia/indm>ex m>.m>php m>/Java_Data_Compression
"I ran a test to compress one million consecutive integers using
various forms of compression. The results are as follows:"
None 4000027
Deflate 2006803
Filtered 1391833
BZip2 427067
...
What is the most efficient/elegant way to parse a flat table into a tree?
...Closure Table in my presentation Models for Hierarchical Data with SQL and m>PHP m> and in my book SQL Antipatterns: Avoiding the Pitfalls of Database Programming.
CREATE TABLE ClosureTable (
ancestor_id INT NOT NULL REFERENCES FlatTable(id),
descendant_id INT NOT NULL REFERENCES FlatTable(id),
...
pyplot scatter plot marker size
... it increases it by a factor of 4). To see this consider the following two m>ex m>amples and the output they produce.
# doubling the width of markers
x = [0,2,4,6,8,10]
y = [0]*len(x)
s = [20*4**n for n in range(len(x))]
plt.scatter(x,y,s=s)
plt.show()
gives
Notice how the size increases very quick...
What platforms have something other than 8-bit char?
...
char is also 16 bit on the Tm>ex m>as Instruments C54x DSPs, which turned up for m>ex m>ample in OMAP2. There are other DSPs out there with 16 and 32 bit char. I think I even heard about a 24-bit DSP, but I can't remember what, so maybe I imagined it.
Another co...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...nd off since for almost a decade (along with application development in C, m>PHP m>, PL/SQL, C#.NET, and Ruby). So, I have no particular axe to grind in this (sometimes) holy war.
The historical performance benefit of stored procs have generally been from the following (in no particular order):
Pre-p...
ANTLR: Is there a simple m>ex m>ample?
...hortcomings. This is just an m>ex m>ample you can work on yourself.
Here's the contents of the grammar file m>Ex m>p.g:
grammar m>Ex m>p;
/* This will be the entry point of our parser. */
eval
: additionm>Ex m>p
;
/* Addition and subtraction have the lowest precedence. */
additionm>Ex m>p
: multiplym>Ex m>p...
What's the difference between dependencies, devDependencies and peerDependencies in npm package.json
... documentation answers my question very poorly. I didn't understand those m>ex m>planations. Can someone say in simpler words? Maybe with m>ex m>amples if it's hard to choose simple words?
...
How to unescape HTML character entities in Java?
... Class StringEscapeUtils is deprecated and moved to Apache commons-tm>ex m>t
– Pauli
Dec 3 '18 at 22:16
...
How can I create directory tree in C++/Linux?
...rn C++ programs.
The C++ standard functions do not have the POSIX-specific m>ex m>plicit
permissions (mode) argument, though.
However, here's a C function that can be compiled with C++ compilers.
/*
@(#)File: mkpath.c
@(#)Purpose: Create all directories in path
@(#)Author: J Le...
Java EE web development, where do I start and what skills do I need? [closed]
..., css, etc) just like a web server does. It is comparable to Apache with a m>php m> module.
– Nemi
Dec 24 '09 at 16:16
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