Question 40 The following C function takes a single-linked list of integers as a parameter...

The following C function takes a single-linked list of integers as a parameter and rearranges the elements of the list. The function is called with the list containing the integers 1, 2, 5, 6, 7 in the given order. What will be the contents of the list after the function completes execution?

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

void rearrange(struct node *list)
{
    struct node *p, *q;
    int temp;
    if ((!list) || !list->next)
        return;
    p = list;
    q = list->next;
    while(q)
    {
        temp = p->value;
        p->value = q->value;
        q->value = temp;
        p = q->next;
        q = p?p->next:0;
    }
}