Oku Tech

1st Round :- It consisted of 3 SQL queries and 4 coding questions - 2 were difficult and 2 were of moderate level. If you solve all the queries and 3 coding questions then you will easily clear the First round. 2nd Round - Technical Interview. Asked basic introductory questions and a few Puzzles like the 9 balls problem. A few questions asked were - 1) delete a node from a linked list 2) check if the given number is an armstrong number or not 3) search a node in a Binary Tree using Level order Traversal 4) Find the first non recurring character in a string (using Hash Map ) 3rd Round - Technical Interview. Asked basic questions related to my projects and Internship and my areas of interest. questions asked : - 1) Find the maximum sub array sum in a given array with time complexity O(n) 2) find local minima in an array ( element whose next and previous elements are greater than this number ) . This had to be solved with time Complexity O(logn) Also asked easy sorting and searching questions. I was not selected after this Round. Best of Luck !!!