Sunday 12 November 2017

C Program to Display all the Nodes in a Linked List without using Recursion


Code:

#include   stdio.h
#include   stdlib.h

struct node
{
    int a;
    struct node *next;
};

void generate(struct node **);
void display(struct node*);
void delete(struct node **);

int main()
{
    struct node *head = NULL;

    generate(&head);
    display(head);
    delete(&head);
    return 0;
}

void generate(struct node **head)
{
    int num = 10, i;
    struct node *temp;

    for (i = 0; i < num; i++)
    {
        temp = (struct node *)malloc(sizeof(struct node));
        temp->a = i;
        if (*head == NULL)
        {
            *head = temp;
            (*head)->next = NULL;
        }
        else
        {
            temp->next = *head;
            *head = temp;
        }
    }
}

void display(struct node *head)
{
    while (head != NULL)
    {
        printf("%d   ", head->a);
        head = head->next;
    }
    printf("\n");
}

void delete(struct node **head)
{
    struct node *temp;
    while (*head != NULL)
    {
        temp = *head;
        *head = (*head)->next;
        free(temp);
    }
}


Output:


9   8   7   6   5   4   3   2   1   0


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