Give a useful big Theta estimation for each of the following t(n).

B.tin) is the runtime of following function, public static int f2(IntnX int mid = n/2; mid=f2(mid); for (int j = 30; > 0; //=3X System.out.println(0) return mid; h.t(n) is the runtime of following function, public static int 43(int n for (int i = n; i >= 0; 1-X for (int j = 0,1 0; k/-3) System.out.println(]+ k);} return n; } .t(n) the run time of following method:The method removeLast for a doubly linked list that has sizen