Below is the summary of all the questions I was asked.

1. https://leetcode.com/problems/battleships-in-a-board/
2. https://leetcode.com/problems/gas-station/
3. Convert a string to json output, implement a json parser
4. Design a LRU cache
5. https://leetcode.com/problems/string-to-integer-atoi/
6. Leader elements in an array