Question

Suppose that you are asked to analyze the Big-Oh of the following method pop(). What pieces of additional information which need to give a perfectly accurate answer? Select all that apply. public ItemType pop() { if(isEmpty()) throw new NoSuchElementException(); ItemType element = top.getElement(); top top.getNext(); n--, = return element;} The Big-Oh of isEmpty(). The Big-Oh of the constructor of the NoSuchElementException class. The type that will be used in place of ItemType. The number of times pop() will be called.

Answer 1

The Big-Oh of isEmpty(). So, the correct answer is: The Big-Oh of isEmpty().

The Big-Oh of isEmpty(): This is relevant because the pop() method begins with a call to isEmpty(). If isEmpty() has a certain time complexity, it contributes to the overall complexity of pop()

The Big-Oh of the constructor of the NoSuchElementException class:

This is not relevant to the analysis of the pop() method. The throw new NoSuchElementException(); line is an exceptional case and generally doesn't impact the overall time complexity of the method.

The type that will be used in place of ItemType: This is not necessary for determining the Big-O complexity. The analysis typically focuses on the algorithmic steps and their growth rates, not on the specific type being used.