Start with the empty list
struct Node * head = NULL ; push ( & head , 40 ) ; push ( & head , 30 ) ; push ( & head , 20 ) ; push ( & head , 10 ) ; printf ( " Given ▁ linked ▁ list ▁ is : " ) ; print ( head ) ; printf ( " sqrt ( n ) th ▁ node ▁ is ▁ % d ▁ " , printsqrtn ( head ) ) ; return 0 ; }