Question

Given two sets of values:

var subset = new[] { 2, 4, 6, 8 };  var superset = new[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }; 

how do I determine if superset contains all elements of subset?

I have come up with this:

superset.Intersect(subset).Count() == subset.Count() 

Is this the most logical and efficient method?

Answer 1

How about Not Any?

bool contained = !subset.Except(superset).Any();