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C# LINQ find duplicates in List
...e element in the group. In LINQ, this translates to:
var query = lst.GroupBy(x => x)
.Where(g => g.Count() > 1)
.Select(y => y.Key)
.ToList();
If you want to know how many times the elements are repeated, you can use:
var query = lst.GroupBy(...
Cleanest and most Pythonic way to get tomorrow's date?
... 0)
I would think that gmtime or localtime would take the value returned by mktime and given me back the original tuple, with 60 as the number of seconds. And this test shows that these leap seconds can just fade away...
>>> a = time.mktime(time.strptime("2008-12-31 23:59:60","%Y-%m-%d ...
Redis command to get all available keys?
...as 1. In order to select the db you want, use SELECT.
The db is identified by an integer.
SELECT 1
KEYS *
I post this info because none of the previous answers was solving my issue.
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impro...
Metadata file '.dll' could not be found
...ing a slightly different version of .NET and this was flagged as a warning by the compiler, but it was causing building to fail.
This should have been flagged as an error and not a warning.
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GPU Emulator for CUDA programming without the hardware [closed]
...and will be removed in a future release.
/usr/include/i386-linux-gnu/bits/byteswap.h(47): error: identifier "__builtin_bswap32" is undefined
/usr/include/i386-linux-gnu/bits/byteswap.h(111): error: identifier "__builtin_bswap64" is undefined
/home/user/Downloads/helloworld.cu(12): error: identifi...
WPF Application that only has a tray icon
...y answer, contrary to Stack Overflow standards. Please improve this answer by providing the specific, material information in the answer itself. This will ensure the information is available regardless of the status of the external site.
– Evan Larsen
Dec 28 '1...
Why is creating a Thread said to be expensive?
...located. In the case of OpenJDK 6 on Linux, the thread stack is allocated by the call to pthread_create that creates the native thread. (The JVM does not pass pthread_create a preallocated stack.)
Then, within pthread_create the stack is allocated by a call to mmap as follows:
mmap(0, attr.__sta...
Can I use a binary literal in C or C++?
...as a special feature implemented within recognizing literal binary numbers by prefix "0b..." preceding the number, although most compilers (C/C++ standards) don't have such feature and if it is the case, here it is my alternative solution:
#define B_0000 0
#define B_0001 1
#define B_0010 2...
In Python, how to display current time in readable format
...
By using this code, you'll get your live time zone.
import datetime
now = datetime.datetime.now()
print ("Current date and time : ")
print (now.strftime("%Y-%m-%d %H:%M:%S"))
...
How do you tell Resharper that a method parameter is a string containing a CSS class?
...
Use [ValueProvider]
From the Code Annotations currently supported by Resharper 10, the best candidate would to use this attribute. From the above link:
ValueProviderAttribute
For a parameter that is expected to be one of the limited set of
values. Specify fields of which type s...