EBK STARTING OUT WITH C++ FROM CONTROL
EBK STARTING OUT WITH C++ FROM CONTROL
9th Edition
ISBN: 8220106714379
Author: GADDIS
Publisher: PEARSON
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Chapter 18, Problem 4RQE

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Self-referential data structure:

It is a data structure, contains sequence of elements which includes at least one pointer variable in type of its own kind.

The purpose of the self-referential data structure is that each variable maintains a link to another variable of the same type to forming a non-contiguous data structure. It is otherwise called as linked list.

It can be implemented to form other data structures such as list, stacks, queues and trees...

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Exercise 1 Function and Structure [30 pts] Please debug the following program and answer the following questions. There is a cycle in a linked list if some node in the list can be reached again by continuously following the next pointer. #include typedef struct node { int value; struct node *next; } node; int 11_has_cycle (node *first) if (first == node *head = { NULL) return 0; first; while (head->next != NULL) { } if (head first) { return 1; } head = head->next; return 0; void test ll_has_cycle () { int i; node nodes [6]; for (i = 0; i < 6; i++) { nodes [i] .next = NULL; nodes [i].value = i; } nodes [0] .next = &nodes [1]; nodes [1] .next = &nodes [2]; nodes [2] .next = &nodes [3]; nodes [3] .next nodes [4] .next &nodes [4]; NULL; nodes [5] .next = &nodes [0]; printf("1. Checking first list for cycles. \n Function 11_has_cycle says it has s cycle\n\n", 11_has_cycle (&nodes [0])?"a":"no"); printf("2. Checking length-zero list for cycles. \n Function 11_has_cycle says it has %s…
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