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How do you format an unsigned long long int using printf?
...s out there that do not have integer types of those exact widths. Only the leastX and fastX types (which may actually be wider than indicated) are mandatory.
– DevSolar
Jul 9 '18 at 15:01
...
How to execute a Ruby script in Terminal?
...e solution on the page, here you go (assuming you filename is abc.rb or at least you created abc):
Type in terminal window:
cd ~/to/the/program/location
ruby abc.rb
and you are done
If the following error occurs
ruby: No such file or directory -- abc.rb (LoadError)
Then go to the directory i...
XAMPP - MySQL shutdown unexpectedly
... Ouch! Blowing away ibdata1 is equivalent to losing all your data (or at least all that are ENGINE=Innodb !
– Rick James
Mar 14 '17 at 4:16
18
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Array.size() vs Array.length
...
.size() is not a native JS function of Array (at least not in any browser that I know of).
.length should be used.
If
.size() does work on your page, make sure you do not have any extra libraries included like prototype that is mucking with the Array prototype.
or
There mi...
Getting rid of \n when using .readlines() [duplicate]
...nd RF symbols (Windows records the files with NLRF at the end of lines, at least on my machine) but keeps the other whitespaces, notably the blanks and tabs.
.
with open('bvc.txt') as f:
alist = f.read().splitlines(True)
has the same effect as
with open('bvc.txt') as f:
alist = f.readl...
Initializing C# auto-properties [duplicate]
...results in the initialization happening after normal constructor logic (at least in example 3, for the int something constructor).
– Eric Schoonover
Oct 3 '08 at 23:14
61
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How do you rotate a two dimensional array?
...ty is O(N^2), but that is still optimal. You have to read every element at least once. Printing the matrix is the same complexitiy
– Alejandro
Aug 4 '15 at 20:34
6
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“No newline at end of file” compiler warning
... §2.2/1).
A conforming compiler should no longer issue this warning (at least not when compiling in C++11 mode, if the compiler has modes for different revisions of the language specification).
share
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How to store decimal values in SQL Server?
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For most of the time, I use decimal(9,2) which takes the least storage (5 bytes) in sql decimal type.
Precision => Storage bytes
1 - 9 => 5
10-19 => 9
20-28 => 13
29-38 => 17
It can store from 0 up to 9 999 999.99 (7 digi...
What happens if you don't commit a transaction to a database (say, SQL Server)?
...
ok but will the transaction be written to log at very least before issuing the commit? For example, say I want to start a transaction run an insert command and "do something else" before I execute commit. will my insert command be written to log? that way if the server crashes b...