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Swift Beta performance: sorting arrays
... optimisation level [-O].
Here is an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
return
}
var p = a[start + (end - start)/2]
var l = start
var r = end - 1
while (l <= r){
if (a[l]...
Defeating a Poker Bot
...ness in human psychology has cost losing players a lot of money and is the fundamental reason that poker can still be profitable.
Poker is a vastly complicated game that takes years to get good at (The old adage remains true, "Ten minutes to learn, a lifetime to master"). The luck element is extre...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...t, so it's unsuitable for pointers, and it zeros r8-r11.
User Interface: function calling
x86-32 Function Calling convention:
In x86-32 parameters were passed on stack. Last parameter was pushed first on to the stack until all parameters are done and then call instruction was executed. This is ...
Simple way to encode a string according to a password?
...
I fixed smehmood's script, and added the decoding function gist.github.com/ilogik/6f9431e4588015ecb194
– Adrian Mester
Jul 23 '13 at 20:24
4
...
What is the optimal algorithm for the game 2048?
...ust talk about the two main heuristics that I use in the static evaluation function and which formalize many of the intuitions that other people have expressed here.
Monotonicity
This heuristic tries to ensure that the values of the tiles are all either increasing or decreasing along both the left/r...
Proper Repository Pattern Design in PHP?
...user object has an id set.
interface UserRepositoryInterface
{
public function find($id);
public function save(User $user);
public function remove(User $user);
}
SQL Repository Implementation
Now to create my implementation of the interface. As mentioned, my example was going to be w...
Fastest way to determine if an integer's square root is an integer
... if( x == 0 )
return true;
// Check mod 255 = 3 * 5 * 17, for fun
int64 y = x;
y = (y & 4294967295LL) + (y >> 32);
y = (y & 65535) + (y >> 16);
y = (y & 255) + ((y >> 8) & 255) + (y >> 16);
if( bad255[y] )
return false;...
What kinds of patterns could I enforce on the code to make it easier to translate to another program
... suspect trying to get the Python AST to model PHP is going to be a lot of fun).
The reason I started to build DMS originally was to build foundations that had very few such assumptions built in. It has some that give us headaches. So far, no black holes. (The hardest part of my job over the las...
How to make good reproducible pandas examples
...ersions of them) in the step which is causing you trouble.
Anyways, have fun learning Python, NumPy and Pandas!
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Why doesn't Java offer operator overloading?
...overwrite the previous value of the object referred to by a, then a member function would have to be invoked.
Complex a, b, c;
// ...
a = b.add(c);
In C++, this expression tells the compiler to create three (3) objects on the stack, perform addition, and copy the resultant value from the temporar...