How to Solve Count Triplets That Can Form Two Arrays of Equal X O R Problem
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Count Triplets That Can Form Two Arrays of Equal XOR
Given an array of integers arr. We want to select three indices i, j and k where (0 <= i < j <= k < arr.length). Let's define a and b as follows: a = arr[i] ^ arr[i + 1] ^ ... ^ arr[j - 1] b = arr[j] ...
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Understanding the Count Triplets That Can Form Two Arrays of Equal X O R Problem
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Problem Statement
Given an array of integers arr. We want to select three indices i, j and k where (0 <= i < j <= k < arr.length). Let's define a and b as follows: a = arr[i] ^ arr[i + 1] ^ ... ^ arr[j - 1] b = arr[j] ^ arr[j + 1] ^ ... ^ arr[k] Note that ^ denotes the bitwise-xor operation. Return the number of triplets (i, j and k) Where a == b.
Count Triplets That Can Form Two Arrays of Equal XOR
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Examples
arr = [2,3,1,6,7]4The triplets are (0,1,2), (0,2,2), (2,3,4) and (2,4,4)
arr = [1,1,1,1,1]10Constraints
1 <= arr.length <= 3001 <= arr[i] <= 108How Interview Coder Helps with Leetcode Problems
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