Hero Electric Software Engineer Interview Questions and Answers

Q1. Basic questions about your experience and expectations
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A take home assignment

Q1. It went well, results awaiting
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Q1. Name work experience qualification
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Q2. Name and what works experience and qualification
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Q3. Muthoot finance mein job kaise karen 2022
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Computer hardware work marketing manager

Q1. Basic fucndamemtals
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Q2. GD&T , stack up analysis
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Q1. Basic questions asked
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Q1. Forging and casting process related questions raised
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Q1. With head level technical for casting and forging related process,part,
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Q1. SELL ABD BUY 1 array question(easy level)
Ans. 
This question involves buying and selling items in an array.
• The array must contain strings.

• You need to implement a function to buy and sell items from the array.

• Provide examples of buying and selling operations.
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Normal DP question (LC med)

Round duration - 120 minutes
Round difficulty - Hard

There was 2 parts. First part problems were based on Quantitative Aptitude. Problems were of 3 types- Easy, Medium and Hard with different scores. Difficulty keeps on increasing if you answer correctly and keeps on decreasing if you answer incorrectly.
First part was of 45 mins.
Second part consisted of 2 coding problems- Medium, Hard. One was based on Greedy and other was a difficult DP + Bitmask problem.
Coding part had more weightage than Aptitude.

Q1. 
K Centers Selection Problem
In Ninja Land, there are cities numbered from 0 to N-1. The distances between each pair of cities are represented by an N * N matrix 'DIST', where 'DIST[i][j]' is the distance ...read more
Ans. 
The problem involves selecting K cities to install servers in Ninja Land to minimize the maximum distance from any city to a nearest server.
• Iterate through all possible combinations of K cities to select for server installation.

• Calculate the maximum distance from any city to the nearest server for each combination.

• Choose the combination that minimizes the maximum distance.
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Q2. 
Beautiful String Verification
Given a non-empty string inputString, determine if it can be converted into a 'Beautiful String' using the defined operation.
You can perform any number of operations to con...read more
Ans. 
Determine if a given string can be converted into a 'Beautiful String' using a specific operation.
• Check if the input string is already a 'Beautiful String' by checking if it contains 'abc' in the correct positions.

• If 'abc' is present in the input string, check if the left and right portions satisfy the defined conditions.

• If the conditions are met, return 'True', otherwise return 'False'.
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Round duration - 90 minutes
Round difficulty - Medium

There were 3 interviewers in my panel. The most senior panellist asked q. related to my interests and internship experience.
Other 2 asked questions related to Coding and subjects. There was 1 coding question which was implementation based and involved many corner cases. They were checking if I was able to figure out different corner cases and handle those. 
There were situation based questions also asked. One question was on system design of Arogya Setu App.

Q1. 
Complex Number Multiplication
Calculate the product of two complex numbers represented as strings in the form “A+Bi”. Here, ‘A’ represents the real part, and ‘B’ represents the imaginary part.
Explanatio...read more
Ans. 
Calculate the product of two complex numbers represented as strings in the form 'A+Bi'.
• Parse the input strings to extract real and imaginary parts of both complex numbers

• Perform multiplication of the complex numbers using the formula (a+bi)*(c+di) = (ac - bd) + (ad + bc)i

• Format the result as a string in the form 'A+Bi' and return
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Round duration - 30 minutes
Round difficulty - Easy

HR round involved basic questions related to background and behaviour. It was basically a cultural fit round.