Solution in C

bool compare_lists(SinglyLinkedListNode* head1, SinglyLinkedListNode* head2) {
        SinglyLinkedListNode* curr1 = head1;
        SinglyLinkedListNode* curr2 = head2;

        if (head1 == NULL && head2 == NULL) {return true;}
        if (head1 == NULL || head2 == NULL) {return false;}

        while (curr1 != NULL && curr2 != NULL) {
                if (curr1->data != curr2->data) {
                        return false;
                }

                curr1 = curr1->next;
                curr2 = curr2->next;
        }

return (curr1 == NULL && curr2 == NULL);

}