HashedIn by Deloitte Interview Questions, Process, and Tips

3 medical level difficulty DSA question were asked.

2 coding questions with easy and medium difficulty were asked

2 coding questions with medium difficulty

Q1. General questions like my long term goals and all
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Round duration - 60 minutes
Round difficulty - Medium

This was a technical round in the evening with a Software Engineer II which included a coding question along with a few questions on Core Java fundamentals. 
I was given the option to either go for the coding round first or java theory. I realised that I might need more time for coding so I decided to opt for the coding round first, followed by the java related questions later. 
The interviewer was extremely pleasant to speak with. He initially asked me to introduce myself and we spoke in depth about a project I worked on in my last organisation. The coding question was given on a google sheet but I was asked to code it on an online IDE without any special syntax correction features.

 

Q1. 
Minimum Count of Balls in a Bag Problem Statement
You are given an integer array ARR of size N, where ARR[i] represents the number of balls in the i-th bag. Additionally, you have an integer M, which indi...read more
Ans. 
Find the minimum possible value of the maximum number of balls in a bag after performing a given number of operations.
• Iterate through the bags and split them to minimize the maximum number of balls.

• Keep track of the maximum number of balls after each operation.

• Return the minimum possible value of the maximum number of balls.
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Round duration - 90 minutes
Round difficulty - Medium

This round was in the evening with a Senior Software Engineer. He introduced himself and immediately presented the question on Google Doc.

Round duration - 30 minutes
Round difficulty - Easy

This was a half an hour round with a Senior Manager.

Q1. In depth discussion over dsa, Java and Spring boot, Mysql and OS
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Q1. It was a dedicated round for system design and Java j2ee development along with rest api concepts
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Q1. What is your family background?
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Q2. Share details of your previous job.
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Q3. Why should we hire you?
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Q4. Why are you looking for a change?
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Q5. Tell me about yourself.
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Q6. In depth discussion about extra curriculum activities
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Few basic SQL question
And
The primary tech stack coding question

It was a product manager round

Round duration - 60 Minutes
Round difficulty - Medium

DSA based along with CS core subject questions. 
2 DSA question, one on String manipulation and another was on Array
Basic questions on Operating Systems

Q1. 
Remove Duplicates from String Problem Statement
You are provided a string STR of length N, consisting solely of lowercase English letters.
Your task is to remove all duplicate occurrences of characters i...read more
Ans. 
Remove duplicates from a string of lowercase English letters.
• Use a set to keep track of unique characters seen so far.

• Iterate through the string and add each character to the set if it hasn't been seen before.

• Construct a new string by appending characters that are not in the set.
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Q2. 
Maximum Subarray Sum Problem Statement
Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.
Explanation...read more
Ans. 
Find the sum of the subarray with the maximum sum among all subarrays in a given array.
• Iterate through the array and keep track of the maximum sum subarray seen so far.

• At each index, decide whether to include the current element in the subarray or start a new subarray.

• Update the maximum sum subarray if the current sum is greater than the previous maximum sum.
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Round duration - 50 minutes
Round difficulty - Easy

It was DSA based + Java based + Designing round. You can expect any question related to these topics depending upon Interviewer's choice and how you handle the round.

Q1. 
String Palindrome Verification
Given a string, your task is to determine if it is a palindrome considering only alphanumeric characters.
Input:
The input is a single string without any leading or trailing...read more
Ans. 
Determine if a given string is a palindrome considering only alphanumeric characters.
• Remove non-alphanumeric characters from the input string.

• Compare characters from start and end of the string to check for palindrome.

• Handle edge cases like empty string or single character input.
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Round duration - 20 Minutes
Round difficulty - Easy

The round here is called Fitment round i.e. to check how much you'll fit into HashedIn culture