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    let empty m n = 
        requires (m = 0 || n = 0) MATRIX_EMPTYCREATION_BADDIMENSIONS
        new FMatrix(m,n, fun (i,j) -> failwith MATRIX_EMPTY )

    let identity m =
        requires (m >= 0) MATRIX_IDENTITYCREATION_BADDIMENSIONS
        if m = 0 then
           empty 0 0
        else
            new FMatrix(m,m, fun (i,j) -> if i = j then 1.0 else 0.0)

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function [Result ResultSudoku] = ResolveSudoku(InputSudoku)
	A = [1 2 3 4 5 6 7 8 9];
	B = [1 2 3 4 4 5 5 6 6 7 7 7 8 8 8 9 9 9];
	C = [1 2 2 3 3 3 4 5 5 6 6 6 7 8 8 9 9 9];
	f = @(x) sum(sum(power(2,x))) / 1022;
	g = @(m,r,c) [m(3*r-2,3*c-2:3*c) m(3*r-1,3*c-2:3*c) m(3*r,3*c-2:3*c)];
	j = @(m,r,c) g(m,sum(B == r),sum(B == c));
	h = @(m,r,c) intersect(intersect(setdiff(A,m(r,:)),setdiff(A,m(:,c))),setdiff(A,j(m,r,c)));
    function [R RS] = Resolve(IS,ESC)
        if ESC == 0

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##author: Horacio Nunez

import decimal, math, functools

D = decimal.Decimal
C = decimal.getcontext()

C.prec = 1024

def multiply(x,y): return C.multiply(x,y)

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let empty m n =
	requires (m = 0 || n = 0) MATRIX_EMPTYCREATION_BADDIMENSIONS
	new FMatrix(m,n, fun (i,j) -> failwith MATRIX_EMPTY )

let identity m =
	requires (m >= 0) MATRIX_IDENTITYCREATION_BADDIMENSIONS
	if m = 0 then
		empty 0 0
	else
		new FMatrix(m,m, fun (i,j) -> if i = j then 1.0 else 0.0)

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//After working with a Functional Language I can't help to think that the world will be more
//safe without all the need to be checking for null values.
//This is an small helper  I wrote to stop writing 'null' every once in a while.

namespace Horacio.Helpers
{
    using System.Net.NetworkInformation;

    public static class ObjectHelper
    {

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public void Foo(MailBodyFormat bodyFormat) {
                string emailBody;

                switch (bodyFormat)
                {
                    case MailBodyFormat.PlainText:
                        isHtml = false;
                        emailBody = body;
                        break;

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// In the end
if (newIndex == this.stepsInfo.Count)
{
  return false; // It doesn't even matter
}

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using System;
namespace CSharpAdventures
{
	class MainClass
	{
		public static void Main (string[] args)
		{
			int max = Int32.MaxValue;
			Console.WriteLine (CheckedSum(UncheckedSum(max,1),1)); //Doesn't Break.
			//Console.WriteLine (UncheckedSum(CheckedSum(max,1),1)); //Will Break!

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using System;

namespace CSharpAdventures
{

	class MainClass
	{
		public static void Main (string[] args)
		{
			int max = Int32.MaxValue;