5. Write a program to find the loop in a single linklist.

/* pass the head reference to detectLoop */
int detectLoop(struct node *list)
{
struct node *slowp = list, *fastp = list;

while (slowp && fastp && fastp->next)
{
slowp = slowp->next;
fastp = fastp->next->next;
if (slow_p == fast_p)
{
printf("\r\nLoop detected in given linked list.\r\n");
return 1;
}
}
return 0;
}