Walmart

The interviewer asked me to describe my ongoing projects and their data models. There was a lot of focus on Java, but not necessarily on meaningful aspects. It felt like he wanted to quickly go through a Java primer book, covering as many topics as

HR called me, and an interview was scheduled for two days later, on a weekday. There were five rounds conducted on the same day, spanning seven hours. The first three rounds were technical, with questions covering Object-Oriented Design, problem-so

First Round 1. You are given a string `s` containing only the characters '(', ')', and '*'. Write a function to check if the string is valid. Rules: * Every '(' must be closed by a ')'. * Every ')' must have a corresponding '('. * The '*' ca