[Hackerrank] maximizing XOR

Given two integers:LAndR

Limit L ≤ A ≤ B ≤ r, find outAXORB.

Input Format

The first line containsLThe first line containsR

Data range

1 ≤ L ≤ r ≤103

Output Format

Maximum exclusive or sum of outputs

Question:

 1 import java.io.*; 2 import java.util.*; 3 import java.text.*; 4 import java.math.*; 5 import java.util.regex.*; 6  7 public class Solution { 8 /* 9  * Complete the function below.10  */11 12     static int maxXor(int l, int r) {13         int maxx = 0;14         for(int i = l;i <= r;i++){15             for(int j = l;j <= r;j++){16                 if(i != j)17                     maxx = Math.max(maxx,i^j);18             }19         }20         return maxx;21 22     }23 24     public static void main(String[] args) {25         Scanner in = new Scanner(System.in);26         int res;27         int _l;28         _l = Integer.parseInt(in.nextLine());29         30         int _r;31         _r = Integer.parseInt(in.nextLine());32         33         res = maxXor(_l, _r);34         System.out.println(res);35         36     }37 }