Hiring process8 levels
  1. 1 IQ Test
  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
  4. 4 Unpaid Test Task (Motivation Check)
  5. 5 Paid Test Task and Follow-Up Interview
  6. 6 Iterative Paid Test Tasks
  7. 7 Office Verification
  8. 8 Final Interview with the Founder

Problems > Maximum XOR of a Pair > Editorial

Maximum XOR of a Pair — Solution & Editorial

Back to the Problem

Build the answer bit by bit from the top: assume the next bit can be 1 and verify with a hash set of masked prefixes (p ⊕ cand must be present) — or insert into a binary trie and greedily walk opposite branches.

Complexity: O(30 N)