https://cses.fi/problemset/task/3359 : Minimal Grid Path on CSES. We had to find out minimum X satisfying the eqn.: SXN G. I think the constraints were N 60, G 1e18, S 1e18. Soln. Binary Search on X, handle overflows when calculating X^N. https://cses.fi/problemset/task/1687 : Company Queries 1 on CSES.

Direct CSES problems were asked in other IIT's OAs too

The interview was chill, very interactive and he talked about my interests in tech and my CV a bit Then he told about the company and though it was an SDE role, they expect you to be handy with ML. I told him am not in good practice in ML so he asked some basic questions only like the confusion matrix and algorithms for classification and what all assumptions we take

He gave a simple DSA question: A string was given as input and a 'limit'. We needed to break the string wherever our line passed the limit and put it in different blocks. Easy implementation