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Python dictionary: Get list of values for list of keys
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A little speed comparison:
Python 2.7.11 |Anaconda 2.4.1 (64-bit)| (default, Dec 7 2015, 14:10:42) [MSC v.1500 64 bit (AMD64)] on win32
In[1]: l = [0,1,2,3,2,3,1,2,0]
In[2]: m = {0:10, 1:11, 2:12, 3:13}
In[3]: %timeit [m[_] for _ in l] # list comprehension
1000000 loops, best of 3...
Best practices for circular shift (rotate) operations in C++
...motion rules mean that rotl_template(u16 & 0x11UL, 7) would do a 32 or 64-bit rotate, not 16 (depending on the width of unsigned long). Even uint16_t & uint16_t is promoted to signed int by C++'s integer-promotion rules, except on platforms where int is no wider than uint16_t.
On x86, th...
JavaScript implementation of Gzip [closed]
... jsxcompressor.js file in your project and then you will be able to read a base 64 encoded gzipped data:
<!doctype html>
</head>
<title>Test gzip decompression page</title>
<script src="jsxcompressor.js"></script>
</head>
<body>
<script>
doc...
Why in C++ do we use DWORD rather than unsigned int? [duplicate]
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164
DWORD is not a C++ type, it's defined in <windows.h>.
The reason is that DWORD has a spe...
Where is SQL Server Management Studio 2012?
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Just download SQLEXPRWT_x64_ENU.exe from Microsoft Downloads - SQL Server® 2012 Express with SP1
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Best practices for styling HTML emails [closed]
... not mean to add images as attachments, instead they should be included as base64-encoded strings to replace the url referenced in "normal" <img> tags, like so: <img alt="Embedded Image" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIA...">
– Timo
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byte + byte = int… why?
...-value-of-some-bit-length.
In other words, this decision must have been based on perception of what the byte type is for, not due to underlying inefficiencies of hardware.
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Is there a simple way to remove multiple spaces in a string?
... ', ' ')
Tests run on a laptop with an i5 processor running Windows 7 (64-bit).
timeit.Timer(stmt = test, setup = setup).repeat(7, 1000)
test_string = 'The fox jumped over\n\t the log.' # trivial
Python 2.7.3, 32-bit, Windows
test | minum | maximum | average ...
Is it possible to use Java 8 for Android development?
...o Google’s new uprising development
environment, Android Studio. It is based on the community edition of
popular IntelliJ Idea IDE by JetBrains and it has recently been
upgraded to its ‘beta’ version by Google in early July 2014, slightly
before this guide was written. Eclipse will rem...
print call stack in C or C++
...oost_stacktrace.cpp:29 (discriminator 2)
3# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
4# _start in ./boost_stacktrace.out
0# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::basic_stacktrace() at /usr/include/boost/stacktrace/stacktrace.hpp:1...