1st round - First unique character in a string https://leetcode.com/problems/first-unique-character-in-a-string

Full loop interview

1 - Median of 2 sorted arrays https://leetcode.com/problems/median-of-two-sorted-arrays
2 - Valid Parentheses https://leetcode.com/problems/valid-parentheses
3 - System Design and Framework questions
4 - Function to limit size of an HashMap, similar to this post - https://stackoverflow.com/questions/5601333/limiting-the-max-size-of-a-hashmap-in-java/5601377