Package g3201_3300.s3209_number_of_subarrays_with_and_value_of_k

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    3209 - Number of Subarrays With AND Value of K\.

    Hard

    Given an array of integers nums and an integer k, return the number of subarrays of nums where the bitwise AND of the elements of the subarray equals k.

    Example 1:

    Input: nums = 1,1,1, k = 1

    Output: 6

    Explanation:

    All subarrays contain only 1's.

    Example 2:

    Input: nums = 1,1,2, k = 1

    Output: 3

    Explanation:

    Subarrays having an AND value of 1 are: <code><ins> **1** </ins>,1,2</code>, <code>1,<ins> **1** </ins>,2</code>, <code><ins> **1,1** </ins>,2</code>.

    Example 3:

    Input: nums = 1,2,3, k = 2

    Output: 2

    Explanation:

    Subarrays having an AND value of 2 are: <code>1, **<ins>2</ins>** ,3</code>, <code>1,<ins> **2,3** </ins></code>.

    Constraints:

    • <code>1 <= nums.length <= 10<sup>5</sup></code>

    • <code>0 <= numsi, k <= 10<sup>9</sup></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 Long countSubarrays(IntArray nums, Integer k)

      • Methods inherited from class java.lang.Object

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