public void HasCycle_FromLeetCode3()
{
var root = new ListNode(1);
root.next = new ListNode(2);
var result = HasCycleImplementation.HasCycle(root);
result.Should().BeFalse();
}
public void HasCycle_FromLeetCode1()
{
var root = new ListNode(3);
var cyclicNode = new ListNode(2);
root.next = cyclicNode;
cyclicNode.next = new ListNode(0);
cyclicNode.next.next = new ListNode(4);
cyclicNode.next.next.next = cyclicNode;
var result = HasCycleImplementation.HasCycle(root);
result.Should().BeTrue();
}