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LinkedIn

3 rounds | 6 Coding
problems

Preparation

Duration: 5 months

Topics: Data Structures, Algorithms, System Design, Aptitude, OOPS

Tip

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.

Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.

Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application process

Where: Campus

Eligibility: Above 7 CGPA

Resume tip

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.

Tip 2 : Every skill must be mentioned.

Tip 3 : Focus on skills, projects and experiences more.

01

Round

Medium

Online Coding Test

Duration60 minutes

Interview date21 May 2015

Coding problem3

This was a 1 hour online coding round on hackerrank platform. 3 DSA questions were given.

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Problem approach

A max heap can be used here. In order to maximize the profit, the ticket must be for the seat in a row which has the maximum number of vacant seats and the number of vacant seats in that row will be decremented by 1 as one of the seats has just been sold. All the persons can be sold a seat ticket until there are vacant seats.

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Problem approach

To find bâ€™s complement: To find bâ€™s complement, add 1 to the calculated (b-1)â€™s complement.

Steps to find (b-1)â€™s complement:

To find (b-1)â€™s complement, Subtract each digit of the number from the largest number in the number system with base b .

For example, if the number is a three-digit number in base 9, then subtract the number from 888 as 8 is the largest number in base 9 nu...

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02

Round

Easy

Video Call

Duration60 minutes

Interview date25 May 2015

Coding problem2

In this round, a DSA question was first asked. Then a lot of discussion regarding the various test cases around this question took place. (e.g, handing of -ve numbers , decimals , overflow etc).

Main concentration was just to get as many as test cases possible and an efficient solution as well.

And Some common question like why you coding in C++?

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Problem approach

Scan each character of the input string and if a number is formed by consecutive characters of the string, we increment the result by that amount.

Time Complexity : O(n)

What are the advantages of OOPS?

Problem approach

OOP language allows to break the program into the bit-sized problems that can be solved easily (one object at a time).

The new technology promises greater programmer productivity, better quality of software and lesser maintenance cost.

OOP systems can be easily upgraded from small to large systems.

It is possible that multiple instances of objects co-exist without any interference,

...

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03

Round

Easy

Video Call

Duration60 minutes

Interview date25 May 2015

Coding problem1

Again one coding question to be done on shared screen

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Problem approach

The naÃ¯ve approach is to run three loops and keep track of the number of triangles possible so far. The three loops select three different values from array, the innermost loop checks for the triangle property ( the sum of any two sides must be greater than the value of third side).

Time Complexity: O(N^3) where N is the size of input array.

The efficient approach is based on the foll...

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Here's your problem of the day

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

What is the return type of a method that doesn't return any value?

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