Phone Screen

1. https://leetcode.com/problems/dot-product-of-two-sparse-vectors/description/
2. https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/description/

Onsite
Coding 1

1. https://leetcode.com/problems/diameter-of-binary-tree/description/
2. https://leetcode.com/problems/valid-palindrome-ii/description/

Coding 2

1. https://leetcode.com/problems/diagonal-traverse/description/
2. https://leetcode.com/problems/next-permutation/description/

Coding 3

1. https://leetcode.com/problems/robot-room-cleaner/description/
2. Couldn't find on leetcode but an easy problem based on Hash tables

Behavioural
Standard Questions like best project from current team, handling conflict with Manager, increase in project scope.

System Design
Design Web crawler

For coding rounds, I was able write optimal code, dry run and calculated the time and space complexity well before the time. So I feel I messed up in either Behavioural or System Design. Tried to ask feedback from recruiter but ghosted.