Let me know if you have any questions...

Round 1:

• Leadership Principles (LP) / Experience

Round 2:

• LP / Experience
• Coding: Propose a data structure to represent arithmetic expressions, write expression evaluation function
  Variant of: https://leetcode.com/problems/basic-calculator-ii/

Round 3:

• LP / Experience
• Coding: https://leetcode.com/problems/convert-bst-to-greater-tree
  or (duplicate on Leetcode)
  https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree/

Round 4:

• LP / Experience
• Coding: Implement word suggestions + autocompletion given input as an "old-style Nokia phone" string of digits.
  Variant of https://leetcode.com/problems/letter-combinations-of-a-phone-number

Round 5:

• LP / Experience only