Check out example codes for "get waht is differnt between two arrays c#". It will help you in understanding the concepts better.

Code Example 1

//get whats in array 2 but not array 1
- array2.Except(array1)
//get whats in array 1 but not array 2
- array1.Except(array2)
//get what is in both array 1 and array 2
- array1.Intersect(array2)

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