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Original Array of Prefix XOR
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Original Array of Prefix XOR

MediumPython

Problem

Find The Original Array of Prefix Xor (LeetCode 2433)

Asked in the Online test stage.

Given an integer array pref, where pref[i] equals arr[0] XOR arr[1] XOR ... XOR arr[i], reconstruct and return the original array arr.

Input and Output

Implement find_array(pref). The input is a non-empty list of integers, and the output must be a list of the same length.

Constraints

  • 1 <= len(pref) <= 10^5
  • 0 <= pref[i] <= 10^6
  • The input array is non-empty
  • The output must have the same length as pref

Function Signature

def find_array(pref):
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