public static HashList <T> Difference(HashList <T> ha1, HashList <T> ha2)
{
HashList <T> result = new HashList <T>();
foreach (T x in ha1.Where(x => !ha2.Contains(x)))
{
result.Add(x);
}
return(result);
}
public static HashList <T> Intersection(HashList <T> ha1, HashList <T> ha2)
{
HashList <T> result = new HashList <T>();
foreach (var x in ha1.Where(ha2.Contains))
{
result.Add(x);
}
return(result);
}
