Linked Lists Exercise list 75 35 86 10 50 28 65 39 current temp trail last Figur

Question

Linked Lists Exercise list 75 35 86 10 50 28 65 39 current temp trail last Figure 1 Linked list for Exercise 6 through 14 6. What is the output, if any, of each of the following C++ statements? a. cout info; b. current = current-> link; cout info; c. cout link-> info; d. trail-> link nullptr: cout info; e. couts last -> link -> info; 8. What are the effects, if any, of each of the following C++ statements? a. train -> link nullptr delete last temp -> link train; list-> info = 19 current = current-> link; current -> link temp -> link; b. c. d.

Explanation / Answer

6.

a ) Since current points to the first node which has 75 it prints 75

b) current->link assigns next node to the current to current then current->info prints 35

c) temp points to the node which has 86 then temp->link gives the next node which has info 10 then again operating ->link gives next node . Then its prints 50

d) trail->link - nullptr sets next node link to null . Then trail->info prints 65

e) last->link gives next node of last which is first node so it prints 75

8

a) trail->link = nullptr sets null and releases last node from the linkedlist. Delete last will delete the last node

b) temp->link = trail , sets node with the data 65 as next node to temp which is holding 86. So this detaches 3 nodes 10 50 and 28 from the list.

c) list->info = 19, updates its info to 19 from 75.

d) current = current->link moves current pointer to next node which is having info as 35.current->link = temp->link sets next node to current as node with info 28. Since in step b already we removed 3 nodes

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