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Pythonic way to find maximum value and its index in a list?
If I want the maximum value in a list, I can just write max(List) , but what if I also need the index of the maximum value?
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Storing SHA1 hash values in MySQL
...es just 4 bit per character and thus would need 160/4 = 40 characters. But if you use 8 bit per character, you would only need a 160/8 = 20 character long field.
So I recommend you to use BINARY(20) and the UNHEX function to convert the SHA1 value to binary.
I compared storage requirements for BIN...
The type or namespace name 'Objects' does not exist in the namespace 'System.Data'
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It worked! Curious, if the System.Data.objects namespace is indeed present within the System.Data.Entity?
– pencilslate
Aug 13 '09 at 22:51
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What is the purpose of `text=auto` in `.gitattributes` file?
...set to "auto", the path is marked for automatic end-of-line normalization. If Git decides that the content is text, its line endings are normalized to LF on checkin.
What's the default behaviour if it's not enabled?
Unspecified
If the text attribute is unspecified, Git uses the core.aut...
How to convert std::string to lower case?
...no way to know whether the character is lowercase or uppercase otherwise.
If you really hate tolower(), here's a specialized ASCII-only alternative that I don't recommend you use:
char asciitolower(char in) {
if (in <= 'Z' && in >= 'A')
return in - ('Z' - 'z');
return...
Nested using statements in C#
... working on a project. I have to compare the contents of two files and see if they match each other precisely.
17 Answers
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Why implement interface explicitly?
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If you implement two interfaces, both with the same method and different implementations, then you have to implement explicitly.
public interface IDoItFast
{
void Go();
}
public interface IDoItSlow
{
void Go();
}
pub...
In Python, how do I split a string and keep the separators?
...org/library/re.html#re.split: "Split string by the occurrences of pattern. If capturing parentheses are used in pattern, then the text of all groups in the pattern are also returned as part of the resulting list."
– Vinay Sajip
Jan 25 '10 at 23:54
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How to check SQL Server version
...arentheses, together with the user name that is used to connect to the specific instance of SQL Server.
Method 3: Look at the first few lines of the Errorlog file for that instance. By default, the error log is located at Program Files\Microsoft SQL Server\MSSQL.n\MSSQL\LOG\ERRORLOG and ERRORLOG.n ...
Get top n records for each group of grouped results
...s, using UNION ALL (See SQL Fiddle with Demo). This works with two groups, if you have more than two groups, then you would need to specify the group number and add queries for each group:
(
select *
from mytable
where `group` = 1
order by age desc
LIMIT 2
)
UNION ALL
(
select *
from...