Method getPrevSlow

java/Chapter 5/Question5_3/Question.java:61–71

(int i)

	}

	public static int getPrevSlow(int i) {
		if (!hasValidPrev(i)) {
			return -1;
		}		
		int num_ones = countOnes(i);
		i--;
		while (countOnes(i) != num_ones) {
			i--;
		}
		return i;
	}
	
	public static int getNext(int n) {
		int c = n;