I'm wondering how to do the following in C:

Write a function that returns the first node

of a linked list.

Your function's prototype is as follows:

*int getFirst(struct node *LL, int *error);*

and operates as follows:

- LL is an array of struct nodes *containing a linked list*
- LL[0] is assumed to be a sentinal node, and is always present
- LL[0].next is the index of the first data node
- If there is a first data node, your function should return that value as the function value, and should set *error to 0
- If however the list is empty (no first data node exists), the function should return 0, and should set *error to 1

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