public void CanCreateACycledLists()
{
var list = new List<LinkedListCustomItem>();
var current = (LinkedListCustomItem)null;
for (int i = 0; i < 100; i++)
{
var item = new LinkedListCustomItem { Number = i };
if (current != null)
{
current.Next = item;
}
current = item;
list.Add(item);
}
//list[4].Next = list[2];
var cItem = list[0];
var count = 0;
var by4 = 4;
var by2 = 2;
LinkedListCustomItem by4Item = null;
LinkedListCustomItem by2Item = null;
do
{
// do something
try
{
by4Item = list[by4];
by4 += 4;
}
catch
{
by4Item = null;
by4 -= 4;
}
try
{
by2Item = list[by2];
by2 += 2;
}
catch
{
by2Item = null;
by2 -= 2;
}
cItem = cItem.Next;
count++;
} while (cItem.Next != null && !this.EvaluateCondition(by4Item, by2Item));
Console.WriteLine(count);
}
private bool EvaluateCondition(LinkedListCustomItem by4, LinkedListCustomItem by2)
{
var res = false;
res = ReferenceEquals(by4, by2);
if (res)
{
if (by4 != null)
{
Console.WriteLine(by4.Number);
}
if (by2 != null)
{
Console.WriteLine(by2.Number);
}
}
return res;
}
