list_node_count

Linked lists16

Objective

Implement a function that counts how many nodes are chained together in a singly linked list.

Steps

The list is built from ListNode structs, each carrying a next pointer and a data pointer.
Starting from head, follow each next pointer until you reach NULL.
Count every node you visit, including the first one.
Return the total as an int. Return 0 when head is NULL.
The prototype is int list_node_count(ListNode *head);.

examples

$ list_node_count(NULL)

$ list_node_count(head) // list: A -> B -> C -> NULL

$ list_node_count(head) // list: X -> NULL

Constraints

Expected files

list_node_count.c

Allowed functions

None. Write every helper yourself.

Allowed headers

<stddef.h>defines NULL

Tests

Run the tests to grade your code

Build

01Empty list (NULL head)

02Single node

03Two nodes

04Five nodes

list_node_count

Objective

Implement a function that counts how many nodes are chained together in a singly linked list.

Steps

The list is built from ListNode structs, each carrying a next pointer and a data pointer.
Starting from head, follow each next pointer until you reach NULL.
Count every node you visit, including the first one.
Return the total as an int. Return 0 when head is NULL.
The prototype is int list_node_count(ListNode *head);.

examples

$ list_node_count(NULL)

$ list_node_count(head) // list: A -> B -> C -> NULL

$ list_node_count(head) // list: X -> NULL

Constraints

Expected files

list_node_count.c

Allowed functions

None. Write every helper yourself.

Allowed headers

<stddef.h>defines NULL

list_node_count

Linked lists16

Objective

Implement a function that counts how many nodes are chained together in a singly linked list.

Steps

The list is built from ListNode structs, each carrying a next pointer and a data pointer.
Starting from head, follow each next pointer until you reach NULL.
Count every node you visit, including the first one.
Return the total as an int. Return 0 when head is NULL.
The prototype is int list_node_count(ListNode *head);.

examples

$ list_node_count(NULL)

$ list_node_count(head) // list: A -> B -> C -> NULL

$ list_node_count(head) // list: X -> NULL

Constraints

Expected files

list_node_count.c

Allowed functions

None. Write every helper yourself.

Allowed headers

<stddef.h>defines NULL

Tests

Run the tests to grade your code

Build

01Empty list (NULL head)

02Single node

03Two nodes

04Five nodes