Hi,

I had onsite with the following questions asked:

1. https://leetcode.com/problems/linked-list-cycle-ii/
2. https://leetcode.com/problems/remove-duplicates-from-sorted-list/
3. https://leetcode.com/problems/string-to-integer-atoi/
4. https://leetcode.com/problems/serialize-and-deserialize-binary-tree/
5. https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/

Hope this helps!