Package g1301_1400.s1310_xor_queries_of_a_subarray

Class Solution

java.lang.Object

g1301_1400.s1310_xor_queries_of_a_subarray.Solution

public class Solution
extends Object

1310 - XOR Queries of a Subarray\. Medium You are given an array `arr` of positive integers. You are also given the array `queries` where queries[i] = [lefti, righti]. For each query `i` compute the **XOR** of elements from lefti to righti (that is, arr[lefti] XOR arr[lefti + 1] XOR ... XOR arr[righti] ). Return an array `answer` where `answer[i]` is the answer to the ith query. **Example 1:** **Input:** arr = [1,3,4,8], queries = \[\[0,1],[1,2],[0,3],[3,3]] **Output:** [2,7,14,8] **Explanation:** The binary representation of the elements in the array are: 1 = 0001 3 = 0011 4 = 0100 8 = 1000 The XOR values for queries are: [0,1] = 1 xor 3 = 2 [1,2] = 3 xor 4 = 7 [0,3] = 1 xor 3 xor 4 xor 8 = 14 [3,3] = 8 **Example 2:** **Input:** arr = [4,8,2,10], queries = \[\[2,3],[1,3],[0,0],[0,3]] **Output:** [8,0,4,4] **Constraints:** * 1 <= arr.length, queries.length <= 3 * 104 * 1 <= arr[i] <= 109 * `queries[i].length == 2` * 0 <= lefti <= righti < arr.length

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int[]	xorQueries(int[] a, int[][] queries)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

xorQueries

public int[] xorQueries(int[] a,
 int[][] queries)