22. A pointer variable whose sole purpose is to locate the first node in a linked list is calledb. the node's linka. the list's topc. the list's linkd. the list's head23. Which of the following will be true when the pointer variable cur references the last node ina linear linked list?c. head == NULLa. cur == NULLb. cur->next == NULLd. head->next == NULL24. Which of the following statements deletes the first node of a linear linked list that has 10nodes?a. head->next - cur->next;b. head - head->next;c. prev->next - cur->next;d. head NULL;25. An array-based implementation of an linked lista. requires less memory to store an item than a pointer-based implementationb. is not a good choice for a small listd. has items which explicitly point to the next itemsc. has a variable access time26. In a pointer-based implementation of an linked list,.a. increasing the size of the list can waste storage and timeb. less memory is required to store an item than in an array-based implementationc. an item explicitly points to the next itemd. items can be accessed directly with equal access time27. Which of the following statements inserts a new node, pointed to by newPtr, at the end of alinear linked list?a. newPtr->next = cur;prev->next = newPtr;b. newPtr->next = head;head - newPtr;c. newPtr->next - NULL;d. prev->next = cur;newPtr->next = cur;28. In a linear linked list,.a. the next pointer of each node has the value NULLb. the last node points to the first nodec. the precede pointer of the dummy head node points to the last noded. the next pointer of the last node has the value NULL

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Answered: 22. A pointer variable whose sole…

22. A pointer variable whose sole purpose is to locate the first node in a linked list is called a. the list's top c. the list's link b. the node's link d. the list's head

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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17. The following function takes a parameter that is a list of integers; the list has at least one element. It is supposed to find the integer that is the largest and find the position of that integer in the list. The function has two incorrect lines of code that make the function compute the results incorrectly. Several lines are highlighted (bold, underlined) which COULD be incorrect. In the following questions, choose the correct line of code that should be in the function. 1 def findlarge(intlist): 2 largest = 0 3 pos = 0 for i in range(1,len(intlist)): if largest > intlist[i: 4 5 largest = intlist[i] pos = i return (largest, pos) 8 Select one of the following to correct a line of code in the function. a. Line 2 should be: largest = -1 b. Line 2 should be: largest = intlist[0] c. Line 4 should be: for i in range(0,len(intlist): %3D d. Line 4 should be: for i in range(1,len(intlist)-1): e. Line 8 should be: return largest 18. Select one of the following to correct a line of code in…
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