Analyst
Goldman Sachs
6 rounds | 12 Coding problems
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Interview preparation journey
Preparation
Duration: 3 months
Topics: DSA, Java(oops), DBMS, Spring, Hibernate.
Tip

Tip 1 : Be confident and try to communicate with the interviewer.
Tip 2 : Practice all the coding concepts.

Application process
Where: Naukri
Eligibility: Experience of 1yr was required in java development
Resume tip

Tip 1 : Have projects related to the skills mentioned in the job description.
Tip 2 : Be perfect with the things that you put on resume. If you feel not confident enough remove them from resume.

Interview rounds
01
Round
Medium
Online Coding Test
Duration120 minutes
Interview date19 Feb 2022
Problems2
Balanced parentheses

#### Note :

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Problem approach

Tip 1 : Read the problem statement carefully before starting to code.

Compress the String

#### Write a program to do basic string compression. For a character which is consecutively repeated more than once, replace consecutive duplicate occurrences with the count of repetitions.

##### E...
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02
Round
Medium
Face to Face
Duration60 minutes
Interview date9 Mar 2022
Problems2
Sort 0 1

#### You have been given an integer array/list(ARR) of size N that contains only integers, 0 and 1. Write a function to sort this array/list. Think of a solution ...

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First non repeating character
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Problem approach

This can be solved using maps or by taking extra array(storing frequencies).

03
Round
Medium
Face to Face
Duration60 minutes
Interview date25 Mar 2022
Problems3
Bubble Sort

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Maximum Path Sum

#### You are given an n-ary tree consisting of ‘N’ nodes. Your task is to return the maximum sum of the path from the root to the leaf node.

##### For example:
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Problem approach

I have solved this problem through recursion. I have discussed my approach with the interviewer and this discussion was good as it went on for 20minutes. He asked me all the edge case scenarios to check my code covers them or not. I have explained him all his cases and he satisfied.

Level order traversal

#### You have been given a Binary Tree of integers. You are supposed to return the level order traversal of the given tree.

##### For example:
``For...``
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Problem approach

I was asked to code this question fast as we were running out of time. I have codes this in short time as I was aware of tree traversals. I have solved this using the height concept of tree.

04
Round
Medium
Face to Face
Duration60 minutes
Interview date25 Mar 2022
Problems3
Regular Expression Match

#### Given a string ‘str’ and a string ‘pat’. The string s has some wildcard characters i.e ‘?’ and ‘*’.

``````If any character is a ‘?’ we can replace that character with any other character.

If a char...``````
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Problem approach

I solved it with the help of frequency. Extra array was taken and stored all the frequencies and solved it.

Best Time to Buy and Sell Stock III

#### You are Harshad Mehta’s friend. He told you the price of a particular stock for the next ‘N’ days. You ca...

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Problem approach

Can go through above link. My solution is also similar to the one in link.

Puzzle Question

There are 9 boxes and 36 balls. Can we arrange odd number of balls in every box?

05
Round
Medium
Face to Face
Duration40 minutes
Interview date25 Mar 2022
Problems1
Minimum Cost Tree From Leaf Nodes

#### Given an array/list ‘AR...

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06
Round
Medium
Face to Face
Duration60 minutes
Interview date25 Mar 2022
Problems1
OOPS

All the oops concepts were asked. All the collection frameworks were asked and asked me to explain how hashmap works(algorithm). Thread questions were asked and I have no work experience in multi threading and I told the interviewer same and he didn't ask any from multi threading.

Problem approach

Tip 1 : Be thorough with all the oops concepts and examples.
Tip 2 : Don't mention any word which you don't know as your next question can be on the word that you said.

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