Infosys Digital Specialist Engineer interview questions

It was a simple interview, first was a technical round in which I was asked two questions and was asked to solve one in 30 minutes. The questions were Higher Medium - Lower Hard level(Leetcode). One of the questions was on a binary tree and another was on a type of sum maximisation in array. I failed to solve both and the interview was short, just basic questions about myself and low-level algorithms.

maximum sub array sum,arrays medium,questions on projects and cs fundamentals(oops,os,dbms).sql query using group by.interview is face-to-face which can either in office or in college.there will an exam in interview too,should solve one question from two in 45 min which is in range of hack with infy range