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image

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string ToBitDoubleString(double num)
{
	return BitConverter.GetBytes(num)
			.Reverse() // little endian -> big endian
			.SelectMany(x => x.ToString("X2")) //to x16 char
			.Select(x => Convert.ToString(Convert.ToInt32($"{x}", 16), 2).PadLeft(4, '0')) // to x2
			.Aggregate("", (x, y) => x + y);
}

double ToDouble(string str)

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using System;
using System.Collections.Generic;

namespace Test20160912
{
    class Program
    {
        static void Main(string[] args)
        {
            var inputs = new[] { "((1 + 4) * (3 + 7) / 5)", "((1 - 7) / (7 - 5)) * 5", "", "1+2" };

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ls | ?{!$_.PSIsContainer} | Unblock-File

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int GetGcd(int a, int b)
{
	if (a < b) return GetGcd(b, a);
	int tmp = 0;
	do
	{
		tmp = a % b;
		a = b;
		b = tmp;
	} while (tmp != 0);

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using ICSharpCode.AvalonEdit;
using System;
using System.Windows;

namespace AvalonEditSample
{
    public class BindableEditor : TextEditor
    {
        public BindableEditor()
        {

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<SyntaxDefinition name="SQL" extensions=".sql" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
  <Color name="Digits" foreground="#FF00008B" exampleText="3.1415f" />
  <Color name="Comment" foreground="#FF008000" exampleText="string text = &quot;Hello, World!&quot;" />
  <Color name="Punctuation" foreground="#FFFF0000" exampleText="string text = &quot;Hello, World!&quot;" />
  <Color name="String" foreground="#FF808000" exampleText="string text = &quot;Hello, World!&quot;" />
  <Color name="String2" foreground="#FF999933" exampleText="string text = &quot;Hello, World!&quot;" />
  <Color name="Keyword" foreground="#FF0000FF" fontWeight="bold" exampleText="SELECT" />
  <Color name="MethodCall" foreground="#FF191970" fontWeight="bold" />
  <Color name="ObjectReference" foreground="#FF008080" exampleText="Customer.Name" />
  <Color name="CommentMarkerSetTodo" foreground="#FFFF0000" fontWeight="bold" />

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public string ToRadixString(int num, int radix)
{
	if (num == 0) return "0";
	var list = new List<string>();
	var tmp = num;
	while (0 < tmp)
	{
		var digit = tmp % radix;
		tmp = tmp / radix;
		list.Add(digit.ToString());

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public static bool IsNarcissistic(int num)
{
	var numStr = num.ToString();
	return num == (int)numStr.Select(c => int.Parse(c.ToString())).Sum(x => Math.Pow(x, numStr.Length));
}

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using FirebirdSql.Data.FirebirdClient;
using System;
using System.IO;

namespace Fb3Test
{
    class Program
    {
        static void Main(string[] args)
        {