Question: given the following functions for a doubly linked list, make the functions circular in addition to recursive Versions of themselves. int removeItem(struct ListNode** headRef, int



given the following functions for a doubly linked list, make the functions circular in addition to recursive Versions of themselves.
int removeItem(struct ListNode** headRef, int data) struct ListNode "current *headRef while(current I. NULL && current->data != data) currentcurrent->next; if(current !=NULL) aini if(current->prev NULL) *headRef current->next ; = else 0 current->prev->next current->next: if(current->next ! NULL) 23 24 125 126 127 128 129 130 return 0 current->next->prev current->prev free(current); return 1; 131 132 ** 133DONE 134 */ 135 int popStack(struct ListNode*. headRef) 136 e *headRet) in 148, Col 5 s
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