Package g1301_1400.s1310_xor_queries_of_a_subarray

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    1310 - XOR Queries of a Subarray.

    Medium

    You are given an array arr of positive integers. You are also given the array queries where <code>queriesi = left<sub>i,</sub> right<sub>i</sub></code>.

    For each query i compute the XOR of elements from <code>left<sub>i</sub></code> to <code>right<sub>i</sub></code> (that is, <code>arrleft<sub>i</sub> XOR arrleft<sub>i</sub> + 1 XOR ... XOR arrright<sub>i</sub></code> ).

    Return an array answer where answer[i] is the answer to the <code>i<sup>th</sup></code> 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:

    • <code>1 <= arr.length, queries.length <= 3 * 10<sup>4</sup></code>

    • <code>1 <= arri<= 10<sup>9</sup></code>

    • queries[i].length == 2

    • <code>0 <= left<sub>i</sub><= right<sub>i</sub>< arr.length</code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final IntArray xorQueries(IntArray arr, Array<IntArray> queries)

      • Methods inherited from class java.lang.Object

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