MicroLeaf Software Technologies Embedded Engineer Interview Questions and Answers

Serialize a tree data structure

• Use pre-order traversal to serialize the tree

• Store null values as a special character

• Use a delimiter to separate nodes

• Example: 1,2,null,null,3,4,null,null,5,null,null

• Deserialize by splitting the string and using a queue

A program to find a palindrome word in a 2D matrix of strings.

• Iterate through each row and column of the matrix

• Check if each string is a palindrome using two pointers approach

• Return the first palindrome word found