Optiver DS test

Gave the online DS test for Optiver Data Science a while ago.

Most of the questions were repeated from other questions tagged in this forum.

There are 4 rounds: Coding Test (1.5 hr), Zap - N (cognitive test) (~1 hr), Sequence Test (30 mins), Probability Theory (30 mins)

The  coding ques :

This one is little complex as it involves OOP and data structures in python. Can be solved if you know how to store sorted arrays in python in
O(log n ) time so like bisect or sortedconatiners module.

The second question was simple involved DP . its the question about calculation approximate expectations.

The coding part was easy.
for other parts just practice the other questions published in this forum for DS , its more or less the same and similar.


Zap-N may be tough if you dont  practice mental math and fast hand eye corordination.

Please add 6 rice as i need only 6 to get to 188.