Walmart

I feel like some people on the team do not have strong knowledge in Java. Some of the Java questions they were asking were very basic J2SE questions, and they were arguing with the wrong answer. For example: if developers do not write a 'try catch' t

I interviewed at Walmart Labs in February 2020. There were 4 interviews: 3 technical and 1 with the hiring manager. **First Round:** * Find the maximum element from a huge number of elements, which can be solved using a max heap. * Difference in ar

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