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    public class AsyncCompletion
    {
        /// <summary>
        /// 跟着实例走的默认未完成源
        /// </summary>
        Lazy<TaskCompletionSource<Unit>> _lazyIncompletByDefaultSource =
            new Lazy<TaskCompletionSource<Unit>>(() => new TaskCompletionSource<Unit>(), true);

        /// <summary>
        /// 静态完成源

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    public class AsyncCompletion
    {
        static AsyncCompletion()
        {

            CompletedSource = new TaskCompletionSource<Unit>();
            CompletedSource.SetResult(Unit.Default);

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   public static IDisposable BindEvent(this object sender, string eventName, EventHandlerInvoker executeAction)
            {



                var t = sender.GetType();

                while (t != null)
                {

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using AzureChat.Abstractions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace AzureChat.Common
{

waynebaby

namespace TableGameSidekick_Metro.Games.DefaultTradeGame.Models
{

    [DataContract]
    public class ResourceConfig : BindableBase<ResourceConfig>
    {
        // If you have install the code sniplets, use "propvm + [tab] +[tab]" create a property。
        // 如果您已经安装了 MVVMSidekick 代码片段，请用 propvm +tab +tab 输入属性

        public ResourceConfig(int players)

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String makeRandom(String content)
{
    if(content == null)
        throw Exception("Null input vlaue");

    if(content.length <= 3)
        return content;
    else
        return generateRadom(content);
}

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----------------------------------Unsafe Code---------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace WordsRandom

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// The code below would print overlapped A and B sequences like:
// ...
// A
// A
// B
// B
// ...
//
// Please add multi-threading protection code to make sure that
// As and Bs are printed in the order of:

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//请实现下面的函数，输入参数baseStr是一个（可以更改的）字符串，请将其中所有连续出现的多个空格都替换成一个空格，单一空格需保留。
//请直接使用baseStr的空间，如需开辟新的存储空间，不能超过o(N)（注意是小o，N是字符串的长度）。返回值是替换后的字符串的长度。
//样例代码为C#，但可以使用任何语言。如需使用任何库函数，必须同时给出库函数的实现。
class Program
{
//linq version, did not read your code, just for less lines.
        public static int RemoveMultipleSpaces(char[] baseStr)
        {
            int currentReadIdx = 0;
            int currentWriteIdx = 0;

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 interface IMyList<T> : IEnumerable<T>
    {
        // O(1)
        // Add an item at the beginning of the list.
        void AddFirst(T item);

        // O(1)
        // Add an item at the end of the list.
        void AddLast(T item);