Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Go

Solution: Sum of All Subset XOR Totals

Explore how to calculate the sum of XOR totals for all subsets of an integer array by leveraging bitwise OR and shifting techniques. Understand the key steps to optimize computation without generating every subset, achieving an O(n) time solution useful for coding interviews.

We'll cover the following...

Statement

Given an array of integers, nums, compute and return the sum of XOR totals for all its possible subsets.

  • A subset is any combination of elements from the original array, nums. This includes the empty subset (containing no elements) and the subset that includes all array elements.

  • The XOR total of a subset results from applying the XOR operation to all the elements in that subset.

Note: If the nums array has duplicate elements, then ...