Subtracting one arrayList from another arrayList using C#

Question

I need Subtracting one arrayList from another arrayList using c#. Help me please

Answer 1

You can use LINQ for all enumerable manipulations:

var a = new []{1,2,3,4,5};
var b = new []{    3,4,5,6,7,8};

var res = a.Except(b).ToList();
//res: 1,2