Walmart OA experience

Round 1

Questions: 25 MCQs covering the following topics:

• Programming Concepts (Data Structures, Algorithms)
• Operating Systems (OS)
• Object-Oriented Programming (OOP)
• Database Management Systems (DBMS)
• System Design

Coding Round

Question 1: Problem: Reverse a given number, calculate the absolute difference between the reversed number and the original number, then count how many 2s are there in the factors of the absolute difference.

Steps:

• Reverse the number.
• Find the absolute difference between the original and reversed number.
• Count the number of 2s in the factors of the absolute difference.

Question 2: Problem: You are given a string, and you need to print all the permutations that start with a digit.

Steps:

• Identify permutations of the string.
• Print the permutations that begin with a number.