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

namespace ConsoleApplication1
{
    class Program
    {

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// As we all know, the generic List<T> class in .NET doesn't 
// have a RemoveMultiple method. Could you implement it for me?
// Say the elements are kept in the _items field, which is an
// array of type T. Also, use _count to keep the current number
// of elements.
// PS: You can compare two items with "==" operator.

namespace System.Collections.Generic
{
    public class List<T>

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#include "stdafx.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

//return value:  the pointer used to free the allocated buffer
char* split_by_blank(char * input, char **& output, size_t& item_count, size_t max_item_count)
{
	if (max_item_count <= 0)
	{

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def quicksel(l,k):
    if len(l) <k:
		raise ValueError
    else:
		pivot=l.pop()         
		lg=filter(lambda x:x>pivot,l)         
		ll=filter(lambda x:x<=pivot,l)         
		if len(lg)>=k:
			return quicksel(lg,k)
		elif len(lg)+1==k:

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 List<string> CreateInstanVar(int time_in_level1)
{
    List<string> result = new List<string>();
    for (int i = 0; i < time_in_level1; i++)
    {
        result.Add(String.Empty);
    }

    return result;
}

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Program:

 class Program
 {
     string myString;

     private Program()
     {
         myString = "foo";
     }

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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
{
    public static int RemoveMultipleSpaces(char[] baseStr)
    {
        if (baseStr == null)
        {
            throw new ArgumentNullException("baseStr");