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Reversal of LinkedList

February 20, 2014 by Dhaval Dave

Reversal of linked list simplified With Three Pointer Without Recursion

/* Link list node */
struct node
{
    int data;
    struct node* next;
};
 
/* Function to reverse the linked list */
static void reverse(struct node** head_ref)
{
    struct node* prev   = NULL;
    struct node* current = *head_ref;
    struct node* next;
    while (current != NULL)
    {
        next  = current->next;  
        current->next = prev;   
        prev = current;
        current = next;
    }
    *head_ref = prev;
} 
 
static void reverse(struct node** head_ref)
{
    struct node* prev   = NULL;
    struct node* current = *head_ref;
    struct node* next;
    while (current != NULL)
    {
        next  = current->next;  
        current->next = prev;   
        prev = current;
        current = next;
    }
    *head_ref = prev;
} 

 

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Filed Under: problem Tagged With: Linked List

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