Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Linked list question. The answer is highlighted in red. Could you show me step by step how to solve this. Thanks!
Transcribed Image Text:Suppose we have a linked list implemented with the structure below. We also have a function that takes
in the head of the list and the current number of nodes in the list.
typedef struct node {
int num;
struct node* next;
} node;
int whatDoesItDo (node * head, int size) {
node * current = head;
node * other;
if (size < 2)
return size;
other = head->next;
while (current != NULL) {
current->next = other->next;
free (other);
current = current->next;
size--;
if(current != NULL & & current->next !=NULL) {
current = current->next;
other = current->next;
return size;
If we call what DoesItDo(head, 8) on the following list, show the list after the function has finished and
state the return value.
head -> 3 -> 8 -> 12 -> 5 -> 1 ->7 -> 19 -> 2
Picture of List Pointed to by head After Function Call:
Head -> 3 -> 12 -> 5 -> 7 -> 19
Function Return Value: 5
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