OA: https://leetcode.com/problems/text-justification/description/
Coding Round: https://leetcode.com/problems/implement-trie-prefix-tree/
(This with like list the products/words starting with a prefix)
LLD: Calculate fees for stocks,bonds etc. Each type has a given rate and some conditions. There also rules that apply to all types of equities. Must ride code where we can new entities, rules etc. Basically extendible.