Would the lazy algorithm still work if we marked a node as removed simply by setting its next field to null? Why or why not? What about the lock-free algorithm? Exercise In the lazy algorithm, can...

Would the lazy algorithm still work if we marked a node as removed simply by setting its next field to null? Why or why not? What about the lock-free algorithm? Exercise

In the lazy algorithm, can predA ever be unreachable? Justify your answer.