Question 12 (1 point)

The following function returns a string of length N whose characters are all 'x'. Give the order of growth (as a function of N) of the running time.

Recall that concatenating two strings in Java takes time proportional to the sum of their lengths.

 public static String f(int N) { if (N == 0) return ""; String s = f(N / 2); if (N % 2 == 0) return s + s; else return s + s + "x"; }

Question 12 options:

	constant
	logarithmic
	linear
	linearithmic
	quadratic
	cubic
	exponential