#include <stdio.h>
#include <stdlib.h>
struct Node
{
int data;
struct Node* next;
};
void push(struct Node **head_ref, int new_data)
{
struct Node* new_node = (struct Node*) malloc(sizeof(struct Node));
new_node->data = new_data;
new_node->next = (*head_ref);
(*head_ref) = new_node;
}
void printMiddle(struct Node *head)
{
struct Node *slow_ptr = head;
struct Node *fast_ptr = head;
if (head!=NULL)
{
while (fast_ptr != NULL && fast_ptr->next != NULL)
{
fast_ptr = fast_ptr->next->next;
slow_ptr = slow_ptr->next;
}
printf("The middle element is [%d]\n\n", slow_ptr->data);
}
}
int main()
{
struct Node* head = NULL;
push(&head, 1);
push(&head, 2);
push(&head, 3);
push(&head, 4);
push(&head, 5);
push(&head, 6);
push(&head, 7);
printMiddle(head);
return 0;
}
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