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Code Golf: Lasers
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Perl, 166 160 characters
Perl, 251 248 246 222 214 208 203 201 193 190 180 176 173 170 166 --> 160 chars.
Solution had 166 strokes when this contest ended, but A. Rex has found a couple ways to shave off 6 more characters:
s!.!$t{...
How can I initialize base class member variables in derived class constructor?
...these variables private in A
};
class B : public A
{
public:
B() : A(0, 0) // Calls A's constructor, initializing a and b in A to 0.
{
}
};
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How to insert element into arrays at specific position?
...on array operator (+) can recombine the parts.
$res = array_slice($array, 0, 3, true) +
array("my_key" => "my_value") +
array_slice($array, 3, count($array)-3, true);
This example:
$array = array(
'zero' => '0',
'one' => '1',
'two' => '2',
'three' => '3',
);
$...
How do I read / convert an InputStream into a String in Java?
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edited May 21 '18 at 13:09
Marko Zajc
14811 silver badge1313 bronze badges
answered Nov 21 '08 at 16:5...
Algorithm to generate all possible permutations of a list?
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answered Apr 26 '10 at 1:53
WhirlWindWhirlWind
13k22 gold badges3737 silver badges4040 bronze badges
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PHP function to make slug (URL string)
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edited Jul 17 '18 at 20:04
leoap
1,48833 gold badges2222 silver badges2929 bronze badges
answered Ju...
How to pass arguments and redirect stdin from a file to program run in gdb?
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edited Dec 23 '10 at 17:32
answered Dec 23 '10 at 17:21
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How do I set a variable to the output of a command in Bash?
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vstepaniuk
27022 silver badges88 bronze badges
answered Jan 10 '11 at 21:04
Andy LesterAndy Lester
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Mod of negative number is melting my brain
...ould write it as
int mod(int x, int m) {
int r = x%m;
return r<0 ? r+m : r;
}
or variants thereof.
The reason it works is that "x%m" is always in the range [-m+1, m-1]. So if at all it is negative, adding m to it will put it in the positive range without changing its value modulo m.
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How to implement has_many :through relationships with Mongoid and mongodb?
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edited Aug 13 '11 at 20:31
answered Aug 13 '11 at 20:06
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