Phone screen
1. [3Sum Closest](https://leetcode.com/problems/3sum-closest/description/)
2. [Continuous Subarrays](https://leetcode.com/problems/continuous-subarrays/description/), variant (maybe?) with length of subarray must be at least 3 and absolute value of the difference between any pair of numbers is in [0, 1].

Onsite
1. [Diameter of Binary Tree](https://leetcode.com/problems/diameter-of-binary-tree/description/)
2. [Binary Tree Vertical Order Traversal](https://leetcode.com/problems/binary-tree-vertical-order-traversal/description/)
3. [Pow(x, n)](https://leetcode.com/problems/powx-n/description/)
4. [Group Shifted Strings](https://leetcode.com/problems/group-shifted-strings/description/)
5. Design Ad Click Aggregator

Phone screen
3Sum Closest
Continuous Subarrays, variant (maybe?) with length of subarray must be at least 3 and absolute value of the difference between any pair of numbers is in [0, 1].
Onsite
Diameter of Binary Tree
Binary Tree Vertical Order Trave