Number of Subarrays With AND Value of K - Practice Coding | SlaveCode
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3209. Number of Subarrays With AND Value of K
Hard
50 Points
Array
Binary Search
Bit Manipulation
Segment Tree
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.
Examples
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: [ 1 ,1,2] , [1, 1 ,2] , [ 1,1 ,2] .
Example 3
Input: nums = [1,2,3], k = 2
Output: 2
Explanation:
Subarrays having an AND value of 2 are: [1, 2 ,3] , [1, 2,3 ] .
Constraints
1 <= nums.length <= 105
0 <= nums[i], k <= 109
3209. Number of Subarrays With AND Value of K
Hard
50 Points
Array
Binary Search
Bit Manipulation
Segment Tree
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.
Examples
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: [ 1 ,1,2] , [1, 1 ,2] , [ 1,1 ,2] .
Example 3
Input: nums = [1,2,3], k = 2
Output: 2
Explanation:
Subarrays having an AND value of 2 are: [1, 2 ,3] , [1, 2,3 ] .