Mercedes-Benz Research and Development India Data Analyst Interview Questions and Answers

Round duration - 120 Minutes
Round difficulty - Medium

Q1. 
Ninja and His Secret Information Encoding Problem
Ninja, a new member of the FBI, has acquired some 'SECRET_INFORMATION' that he needs to share with his team. To ensure security against hackers, Ninja dec...read more
Ans. 
The task is to encode and decode 'SECRET_INFORMATION' for security purposes and determine if the transmission was successful.
• Read the number of test cases 'T'

• For each test case, encode the 'SECRET_INFORMATION' and then decode it

• Compare the decoded string with the original 'SECRET_INFORMATION'

• Print 'Transmission successful' if they match, else print 'Transmission failed'
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Round duration - 60 Minutes
Round difficulty - Medium

Q1. 
Equilibrium Index Problem Statement
Given an array Arr consisting of N integers, your task is to find the equilibrium index of the array.
An index is considered as an equilibrium index if the sum of elem...read more
Ans. 
Find the equilibrium index of an array where sum of elements on left equals sum on right.
• Iterate through the array and calculate prefix sum and suffix sum at each index.

• Compare prefix sum and suffix sum to find equilibrium index.

• Return the left-most equilibrium index or -1 if none found.
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Round duration - 50 Minutes
Round difficulty - Easy