比较两个不同大小的数组 [英] Comparing two different sized arrays

问题描述

我有两个字符串数组，一个比另一个大，并且我需要检查数组中的任何字符串是否相同.

I have two string arrays, one bigger than the other, and i need to check if any of the strings in the arrays are the same.

推荐答案

My首选方法是对每个数组进行排序.
然后只需比较一个循环:

My preferred method would be to sort each array.
Then just compare with a single loop:

If (string A > string B)
   move B
else if (string A < string B)
   move A
else 
   Same - record, and move A and B.

您可以使用Array.Sort将字符串数组按顺序排序:

You can use Array.Sort to sort string arrays into order:

string[] st = new string[] { "qwertyuiop", "asdfghjkl", "zxcvbnm" };
Array.Sort(st);

尝试一下:

Try this:

string[] array1, array2;
//list to store index's of same strings
List<keyvaluepair><int,int>> couplesList = new List<keyvaluepair><int,int>>();

//array creation goes here

//the algorithm 
for(int i = 0; i < array1.Length; i++)
{
    for(int j = 0; j < array2.Length; j++)
    {
        if(array1[i] == array2[j])
        {
           couplesList.Add(new KeyValuePair<int,int>(i,j));
        }
    }
}</keyvaluepair></keyvaluepair>

我已经做了类似的事情:

I wud have done something like this:

//smaller is the array with less no. of strings
//bigger is the array with more no. of strings

//this loop compares if any string in smaller is present in bigger
foreach(string i in smaller)
foreach(string j in bigger)
{
if(i==j)
Console.WriteLIne(i);//print the common string
}

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