Layton163.java

public class Layton {
    public static String[] validAEndPoints = new String[] { "A", "-1", "B", "-2", "C", "-3", "-4", "-5", "-6", "D", "-7", "-8", "E",
            "-9", "-10", "-11", "F" };
    public static String[] validFEndPoints = new String[] { "A", "-12", "B", "-13", "C", "D", "E", "-14", "-15", "-16", "F" };
    public static void main(String[] args) {
        int startA = 0;
        int endA = 16;
        int positionA = 0;
        boolean reverseA = false;
        int startF = 10;
        int endF = 0;
        int positionF = 10;
        boolean reverseF = true;
        Layton layton = new Layton();
        while (!layton.checkIfInteresctingPoints(positionA, positionF)) {
            if (positionA <= endA && !reverseA) {
                positionA++;
            }
            if (positionA > startA && reverseA) {
                positionA--;
            }
            if (positionF >= endF && reverseF) {
                positionF--;
            }
            if (positionF < startF && !reverseF) {
                positionF++;
            }
            if (positionA == endA || positionA == startA) {
                reverseA = !reverseA;
            }
            if (positionF == startF || positionF == endF) {
                reverseF = !reverseF;
            }
        }
        System.out.println(validAEndPoints[positionA]);
    }

    public boolean checkIfInteresctingPoints(int A, int F) {
        if (validAEndPoints[A] == validFEndPoints[F]) {
            return true;
        }
        return false;
    }
}