982. Triples with Bitwise AND Equal To Zero LeetCode Solution

Minimum Cost to Merge Stones
Share:

Triples with Bitwise AND Equal To Zero Given an integer array nums, return the number of AND triples.

An AND triple is a triple of indices (i, j, k) such that:

  • 0 <= i < nums.length
  • 0 <= j < nums.length
  • 0 <= k < nums.length
  • nums[i] & nums[j] & nums[k] == 0, where & represents the bitwise-AND operator.

Example 1:

Input: nums = [2,1,3]
Output: 12
Explanation: We could choose the following i, j, k triples:
(i=0, j=0, k=1) : 2 & 2 & 1
(i=0, j=1, k=0) : 2 & 1 & 2
(i=0, j=1, k=1) : 2 & 1 & 1
(i=0, j=1, k=2) : 2 & 1 & 3
(i=0, j=2, k=1) : 2 & 3 & 1
(i=1, j=0, k=0) : 1 & 2 & 2
(i=1, j=0, k=1) : 1 & 2 & 1
(i=1, j=0, k=2) : 1 & 2 & 3
(i=1, j=1, k=0) : 1 & 1 & 2
(i=1, j=2, k=0) : 1 & 3 & 2
(i=2, j=0, k=1) : 3 & 2 & 1
(i=2, j=1, k=0) : 3 & 1 & 2

Example 2:

Input: nums = [0,0,0]
Output: 27

Constraints:

  • 1 <= nums.length <= 1000
  • 0 <= nums[i] < 216

Triples with Bitwise AND Equal To Zero Solutions

Time: O(n)
Space: O(n)

C++

 Will be updated Soon

Java

 
 Will be updated Soon

Python

  Will be updated Soon

Watch Tutorial

Checkout more Solutions here

Leave a Comment

Your email address will not be published. Required fields are marked *

x