OLA Interview Experience | Set 6 (For SDE-1)

Last month i was interviewed by Ola for SDE 1 post. Here is my experience.

Round 1
a. Inorder predecessor and successor for a given key in BST –

b. String matching where one string contains wildcard characters

Round 2
a. A Boolean Matrix Question

b. Print Left View of a Binary Tree

c. Find the number of islands

Round 3
a. Detailed discussion of my project, complete architecture, how can it be made better. He was listening carefully and was pointing out issues.

b. LRU design – i. Least recently used, and
        ii. Max frequency

Round 4 (Senior Director)

Just normal discussion and he will basically check how involved are you in your job. Just be confident about what you have done.

If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.