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Programmer Puzzle: Encoding a chess board state throughout a game
...nly specifies the minimal information necessary. Consider this opening:
e4 e5
Nf3 Nc6
…
which translates to:
White moves king’s pawn from e2 to e4 (it is the only piece that can get to e4 hence “e4”);
Black moves the king’s pawn from e7 to e5;
White moves the knight (N) to f3;
Black ...
How to determine whether a given Linux is 32 bit or 64 bit?
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Try uname -m. Which is short of uname --machine and it outputs:
x86_64 ==> 64-bit kernel
i686 ==> 32-bit kernel
Otherwise, not for the Linux kernel, but for the CPU, you type:
cat /proc/cpuinfo
or:
grep flags /proc/cpuinfo
Under "flags" parameter, you will see various values:...
How to iterate over arguments in a Bash script
...nts are broken up properly if there are spaces in them:
sh test.sh 1 2 '3 4'
1
2
3 4
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Stripping out non-numeric characters in string
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241
There are many ways, but this should do (don't know how it performs with really large strings t...
Square retrofit server mock for testing
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104
Mock Retrofit 2.0 Requests for Testing
As the old mechanisms like creating MockClient class and...
Django development IDE [closed]
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answered Oct 6 '08 at 16:48
Sam CorderSam Corder
5,03122 gold badges2020 silver badges3030 bronze badges
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How to update attributes without validation
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edited Jan 10 at 5:42
Nathan
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answered Jun 8 '10 at 15:3...
Find the day of a week
...ric weekday (0-6 starting on Sunday).
as.POSIXlt(df$date)$wday
## [1] 3 3 4
which you could use to subset a character vector of weekday names
c("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
"Friday", "Saturday")[as.POSIXlt(df$date)$wday + 1]
## [1] "Wednesday" "Wednesday" "Thursda...
Taking screenshot on Emulator from Android Studio
...f you keep the emulator in Android Studio as possible since Android Studio 4.1 click here to save the screenshot in your standard location:
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C: What is the difference between ++i and i++?
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1142
++i will increment the value of i, and then return the incremented value.
i = 1;
j = ++i;
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