Which XXX would replace the missing statement in the following algorithm? ListInsertAfter(students, curNode, newNode) { if (students-head -- null) { studentshead - newNode studentstail - newNode XXX { students-tail-next - newNode newNodeprev - studentstail students-tail - newNode else { sucNode - curNodenext newNode-next = sucNode newNodeprev - curNode curNode-next - newNode sucNodeprev - newNode

Which XXX would replace the missing statement in the following algorithm? ListInsertAfter(students, curNode, newNode) { if (students-head -- null) { studentshead - newNode studentstail - newNode XXX { students-tail-next - newNode newNodeprev - studentstail students-tail - newNode else { sucNode - curNodenext newNode-next = sucNode newNodeprev - curNode curNode-next - newNode sucNodeprev - newNode

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

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Which XXX would replace the missing statement in the following algorithm?
ListInsertAfter (students, curNode, newNode) {
if (students--head == null) {
students-head = newNode
students-tail = newNode
XXX {
students-tail-next = newNode
newNode-prev = students-tail
students-tail = newNode
else {
sucNode =
= curNodenext
newNode-next = sucNode
newNode-prev - curNode
curNode-next = newNode
sucNode--prev = newNode
a. else if (curNode == students--head)
O b.else if (sucNode == students-tail)
Oc. else if (curNode != students-head)
Od.else if (curNode == students-tail)

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