C#完成次序表(線性表)完全實例。本站提示廣大學習愛好者:(C#完成次序表(線性表)完全實例)文章只能為提供參考,不一定能成為您想要的結果。以下是C#完成次序表(線性表)完全實例正文
本文實例講述了C#完成次序表(線性表)的辦法。分享給年夜家供年夜家參考,詳細以下:
根本思惟是應用數組作為盛放元素的容器,數組一開端的年夜小要完成肯定,並應用一個Pointer指向次序表中最初的元素。次序表中的元素是數組中元素的子集。次序表在內存中是持續的,優勢是查找,弱勢是拔出元素和刪除元素。
為防止裝箱拆箱,這裡應用泛型,取代object。應用object的例子可以參照本站這篇文章:http://www.jb51.net/article/87603.htm,這個鏈接中的例籽實現的是隊列,並沒 有應用Pointer來標識 次序表中最初一個元素,而是靜態的調劑數組的年夜小,這與本例顯著分歧,靜態調劑數組年夜小開支較年夜。應用object異樣可以完成次序表數據構造,然則頻仍裝箱拆箱形成較年夜的開支,應應用泛型取代。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace LinearList
{
public interface IListDS<T>
{
int GetLength();
void Insert(T item, int i);
void Add(T item);
bool IsEmpty();
T GetElement(int i);
void Delete(int i);
void Clear();
int LocateElement(T item);
void Reverse();
}
//次序表類
class SequenceList<T>:IListDS<T>
{
private int intMaxSize;//最年夜容量事前肯定,應用數組必需先肯定容量
private T[] tItems;//應用數組盛放元素
private int intPointerLast;//一直指向最初一個元素的地位
public int MaxSize
{
get { return this.intMaxSize; }
set { this.intMaxSize = value; }
}
public T this[int i]//索引器便利前往
{
get { return this.tItems[i]; }
}
public int PointerLast
{
get { return this.intPointerLast; }
}
public SequenceList(int size)
{
this.intMaxSize = size;
this.tItems = new T[size];//在這裡初始化最公道
this.intPointerLast = -1;//初始值設為-1,此時數組中元素個數為0
}
public bool IsFull()//斷定能否超越容量
{
return this.intPointerLast+1 == this.intMaxSize;
}
#region IListDS<T> 成員
public int GetLength()
{
return this.intPointerLast + 1;//不克不及前往tItems的長度
}
public void Insert(T item, int i)//設i為第i個元素,從1開端。該函數表現在第i個元素前面拔出item
{
if (i < 1 || i > this.intPointerLast + 1)
{
Console.WriteLine("The inserting location is wrong!");
return;
}
if (this.IsFull())
{
Console.WriteLine("This linear list is full! Can't insert any new items!");
return;
}
//假如可以添加
this.intPointerLast++;
for(int j=this.intPointerLast;j>=i+1;j--)
{
this.tItems[j] = this.tItems[j - 1];
}
this.tItems[i] = item;
}
public void Add(T item)
{
if (this.IsFull())//假如超越最年夜容量,則沒法添加新元素
{
Console.WriteLine("This linear list is full! Can't add any new items!");
}
else
{
this.tItems[++this.intPointerLast] = item;//表長+1
}
}
public bool IsEmpty()
{
return this.intPointerLast == -1;
}
public T GetElement(int i)//設i最小從0開端
{
if(this.intPointerLast == -1)
{
Console.WriteLine("There are no elements in this linear list!");
return default(T);
}
if (i > this.intPointerLast||i<0)
{
Console.WriteLine("Exceed the capability!");
return default(T);
}
return this.tItems[i];
}
public void Delete(int i)//設i最小從0開端
{
if (this.intPointerLast == -1)
{
Console.WriteLine("There are no elements in this linear list!");
return;
}
if (i > this.intPointerLast || i < 0)
{
Console.WriteLine("Deleting location is wrong!");
return;
}
for (int j = i; j < this.intPointerLast; j++)
{
this.tItems[j] = this.tItems[j + 1];
}
this.intPointerLast--;//表長-1
}
public void Clear()
{
this.intPointerLast = -1;
}
public int LocateElement(T item)
{
if (this.intPointerLast == -1)
{
Console.WriteLine("There are no items in the list!");
return -1;
}
for (int i = 0; i <= this.intPointerLast; i++)
{
if (this.tItems[i].Equals(item))//若是自界說類型,則T類必需把Equals函數override
{
return i;
}
}
Console.WriteLine("Not found");
return -1;
}
public void Reverse()
{
if (this.intPointerLast == -1)
{
Console.WriteLine("There are no items in the list!");
}
else
{
int i = 0;
int j = this.GetLength() / 2;//成果為下界整數,正好用於輪回
while (i < j)
{
T tmp = this.tItems[i];
this.tItems[i] = this.tItems[this.intPointerLast - i];
this.tItems[this.intPointerLast - i] = tmp;
i++;
}
}
}
#endregion
}
class Program
{
static void Main(string[] args)
{
}
}
}
基於次序表的歸並排序:
//基於次序表的歸並排序
static private SequenceList<int> Merge(SequenceList<int> s1,SequenceList<int> s2)
{
SequenceList<int> sList = new SequenceList<int>(20);
int i = 0;
int j = 0;
while(i<=s1.PointerLast&&j<=s2.PointerLast)
{
if (s1[i] < s2[j])
{
sList.Add(s1[i]);
i++;
}
else
{
sList.Add(s2[j]);
j++;
}
}
if (i > s1.PointerLast)
{
while (j <= s2.PointerLast)
{
sList.Add(s2[j]);
j++;
}
return sList;
}
else//即j>s2.PointerLast
{
while (i <= s1.PointerLast)
{
sList.Add(s1[i]);
i++;
}
return sList;
}
}
願望本文所述對年夜家C#法式設計有所贊助。