Junior Software Developer Interview Questions

Would you mind sharing about the content for the coding challenge and the difficulty level? (such as array manipulation for Leetcode medium etc) Thank you!

What is the difference between LinkedList and ArrayList? Which one of these two will you choose if in the application there is a frequent operation of deleting first 3 elements?

What does final keyword in Java do?

if the node has no children, delete it and set pointer pointing to it to null if node has left child only, make grandparent point to left node, and remove the original parent node if node has 2 children, find the inorder successor (go right once, then left as far as possible), replace the original with inorder successor. if the inorder successor has a right child, make the parent of the inorder successor point to the right child

Answer the way you think is best

overall good attitude

Trick is to disregard the size N and focus on the range of 1-50, solution should be O(1).