Walmart Labs Interview Questions

Ds S. - "Initially I asked clarifying questions like whether the tree can be empty or not and asked the interviewer to explain what is meant by left view and the explanation for the sample inputs. Then I came up with the level order traversal approach where we visit each level in the binary tree at once using a queue and at each level print the value of the first node. Interviewer seemed satisfied with the approach and asked me to code it up. Finally gave the time and space complexity of the solution."See full answer

onering2ruleall - "Total volume of the swimming pool, let's say it's a standard 50m x 25 m x 2m =2500 m3 = 2.5 million litter standard water horse water flow rate is 17 liter per min. So, 2.5 m / 17 =147,059 min"See full answer

Michael P. - "clarifying questions: Particular location? Small town? Big town? Self- checkout vs. associate checkout? Weekly operating hours? Super-center vs small format? Competitive landscape? Store sales? Are we talking division 1 or adding health and wellness? Does the store have a vision center? Hair… nails … bank etc. Let’s say we agree that this is a super center in a suburb that wants to focus on converting to full self checkout. I’d have to look further into exact times with my data science team t"See full answer

Yash G. - " import java.util.*; enum RideType { SHARED, PRIVATE, EXECUTIVE } enum VehicleType { SEDAN, SUV, HATCHBACK, LUXURY, VAN, ELECTRIC, AUTO_RICKSHAW, BIKE_TAXI } final class Location { private final double logitude; private final double latitude; private final String location; public Location(double logitude, double latitude, String location){ this.logitude = logitude; this.latitude = latitude; this.l"See full answer

Pradeep kumar S. - "The primary goal of the adtech platform is to precisely target your audience online, that can reap great rewards for your marketing and revenue objectives. For that we have to define Program Success Metrics. Here are six key metrics for technology companies used by leading advertising providers such as Facebook and Google use: Impressions: How many unique and total viewership of the ad Exposure: the average number of times an ad is served per person. Engagement Rate: how many click t"See full answer

RestlessMonk - "I prefer to build a team of complementary skills than being skewed on one aspect. And generally avoid an all rockstar team. Technically, this means we will have atleast one rockstar for one skill and it is acceptable if that rockstar is just an avg performer on other skills Which person gets indexed more on which skill is a time to time exercise depending on needs of the org, product charter and career aspirations of the person."See full answer

Jeet B. - "I contradict the choice of DB for storing App Data in this case, I believe a NoSQL would have been a better choice. Could you please clarify why you chose RDBMS/SQL?"See full answer

RestlessMonk - "Below data was given in a an excel. Data of 6 weeks, at a weekly level of COVID samples collected and tested Age Group, Population size, # tested, # positive, gender My approach: Tried to understand the trend of positivity rate of each group across weeks and cumulative level There is no variation across weeks, and each cohort exhibited similar pattern in all the weeks. So looked at cumulative data of 6 weeks. No clear goal/objective set by the interviewer for vaccine distributio"See full answer

Shivam S. - "Conduct a competitive analysis: Research the competitive landscape to identify gaps and opportunities that your product can capitalize on. Develop a business case: Document the value of your product, including projected growth, expected return on investment, and potential risk factors. Establish partnerships: Develop relationships with key stakeholders and partners who can help provide resources and funding for your product. Secure executive support: Present yo"See full answer

Rajeev K. - "I’ve spent over 6 years building and scaling e-commerce products across EMEA and APAC. At Jumia, I led product initiatives on the checkout and payments side. For example, I launched gamified promotions on PDP and checkout that improved engagement and delivered a 2.3x uplift in conversion. I also introduced automated installment payments and order cancellation flows, which not only improved user trust but also reduced complaints by 30% and lowered operational costs. Before that, at Lazada, I work"See full answer

Niteesh V. - "inheritance means its acquire all properties from parent class to child class.composition means its acquire some properties as our request is called composition"See full answer

Exponent - "We've identified the problem as a Design a Product question. Use the following framework for tackling these types of questions: Ask Clarifying Questions Identify users, behaviors, and pain points State product goal Identify current solutions Brainstorm new solutions Evaluate solutions Measure success Summarize We'll go through each of these step by step. Ask Clarifying Questions The PM interview isn't about your ability to come up w"See full answer

Divyani .. - "Did the code in Python"See full answer