What should the dry run track?

Practice this question from Single Number III - Rightmost Set Bit Pattern Practice Quiz, with options and an explanation.

Question

What should the dry run track?

Option A — Correct answer

Track xorAll, mask, and the two XOR groups.

Option B

Only the final answer, not the bit state

Option C

The alphabetical order of variable names

Option D

Only whether input is sorted

Explanation

Track xorAll, mask, and the two XOR groups.

Single Number III - Rightmost Set Bit Pattern Practice Quiz

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