在c＃win中分类数组。形成 [英] Unsorting Array in c# win. form

问题描述

我被困在根据他们的长度对一组整数进行排序并且取消排序的部分。



< b>示例

下面是我想要序列化的整数数组

 int [] i = new int [] { 20,5,90,7,44,81}; 

输出

 i = new int [] {5,7,20,90,44,81}; 

UNSORTING

 i = new int [] {20,5,90,7,44,81}; 

到目前为止，我不能找到一种方法来取消列表的回传。任何代码片段都将不胜感激。





提前致谢

解决方案

Quote：

unsort

不要改变数组 - 使用第一个数组的索引生成另一个数组并更改它 - 这是一种链接列表。



< pre lang =text> int [] i = new int [] {20,5,90,7,44,81};

int [] j = new int [] {1,3,0,2,4,5};

试试这个

  int  [] i =  new   int  [] { 20 ， 5 ， 90 ， 7 ， 44 ， 81 }; 
  int  [] unsortedarray =  new   int [i.Length]; 
 i.CopyTo（unsortedarray， 0 ）; 
 Array.Sort（i）;  //  排序数组5,7,20,44,81,90  
 i = unsortedarray;  //  未排序的数组20,5,90,7,44,81  

I am stuck at the part of Sorting a group of integers according to their length and Un-Sorting it back.

Example
Below is my integer array that i want to get serialized

int[] i = new int[] { 20,5,90,7,44,81 };

OUTPUT

i = new int[] { 5,7,20,90,44,81 };

UNSORTING

i = new int[] { 20,5,90,7,44,81 };

So far, i cannot find a way to unsort the list back. Any Code snippet would be appreciated.


Thanks in advance

解决方案

Quote:

unsort

Don't alter the array -- make another array with the indices of the first array and alter that -- it's kind of a linked list that way.

int[] i = new int[] { 20,5,90,7,44,81 };

int[] j = new int[] { 1 , 3 , 0 , 2 , 4 , 5 };

Try this

int[] i = new int[] { 20, 5, 90, 7, 44, 81 };
           int[] unsortedarray = new int[i.Length];
           i.CopyTo(unsortedarray, 0);
           Array.Sort(i);  // sorted array  5,7,20,44,81,90
           i = unsortedarray; //un sorted array  20, 5, 90, 7, 44, 81

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