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SDE - 1

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4 rounds | 8 Coding problems

Interview preparation journey

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Preparation
Duration: 4 months
Topics: Data Structures, Algorithms, Database management and system, Operating system, Computer Organization and Architecture
Tip
Tip

Tip 1 : Understand basics first
Tip 2 : Do practice regularly.
Tip 3 : Refresh your OS and OOPS concepts

Application process
Where: Campus
Eligibility: No criteria
Resume Tip
Resume tip

Tip 1 : Write those projects, which you understand the whole and thorough with it
Tip 2 : Make it of at most one page.

Interview rounds

01
Round
Easy
Online Coding Test
Duration90 minutes
Interview date25 Jul 2019
Coding problem1

3 coding questions, two of easy and 1 medium(DP)

1. Maximum Subarray Sum

Moderate
25m average time
75% success
0/80
Asked in companies
UberTata Consultancy Services (TCS)Amazon

Given an array of numbers, find the maximum sum of any contiguous subarray of the array.


For example, given the array [34, -50, 42, 14, -5, 86], the maximum ...

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Problem approach

Straightforward kind of a question.

Try solving now
02
Round
Easy
Face to Face
Duration60 minutes
Interview date25 Jul 2019
Coding problem2

Face to face coding round, asked 2 questions, of medium complexity

1. Shuffle Two Strings

Hard
50m average time
50% success
0/120
Asked in companies
GoogleTata Consultancy Services (TCS)Accenture

You are given three strings “A”, “B” and “C”. Y...

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Problem approach

1. Calling the random function and removing and appending at the front of the list
2. Keeping two numbers in one place

Try solving now

2. Design a stack that supports getMin() in O(1) time and O(1) extra space

Moderate
15m average time
85% success
0/80
Asked in companies
RazorpayFlipkartAdobe

Create a stack data structure that allows operations such as push (adding an element), pop (removing the top element), top (retrieving the top element), and also provides a w...

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03
Round
Medium
Face to Face
Duration90 minutes
Interview date26 Jul 2019
Coding problem3

Various data structure and algo questions

1. Left View Of a Binary Tree

Moderate
30m average time
60% success
0/80
Asked in companies
SalesforceOlaWalmart

You have been given a Binary Tree of 'n' nodes, where the nodes have integer values



Example :
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Try solving now

2. Right View

Moderate
35m average time
65% success
0/80
Asked in companies
AdobeUberApple

You have been given a Binary Tree of integers.

Your task is to print the Right view of it.

The right view of a Binary T...

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3. Zigzag Binary Tree Traversal

Easy
10m average time
90% success
0/40
Asked in companies
Goldman SachsAmazon

You are given a ‘Binary Tree’.


Return the level-order traversal of the Binary Tree.


Example:
Input: Conside...
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Try solving now
04
Round
Medium
HR Round
Duration90 minutes
Interview date26 Jul 2019
Coding problem2

Hiring manager round, he asked coding questions and probability questions.
the median in the stream of integers, and the probability question I couldn't solve and previous projects I have done.

1. Basic HR Question

Who do you admire and why?

2. Reverse the String

Easy
15m average time
85% success
0/40
Asked in companies
FacebookAckoTata Consultancy Services (TCS)

You are given a string 'STR'. The string contains [a-z] [A-Z] [0-9] [special characters]. You have to find the reverse of the string.

For example:

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Try solving now

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Is method overloading possible by changing the return type?

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