Unacademy

Unacademy aims to build the world's largest online knowledge repository for multi-lingual education. We use technology to empower great educators and create a community of self-learners. Our vision is to partner with the brightest minds and democratize education for everyone looking to learn.

Interview Questions

Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.

Problem Title

Exp

Difficulty

Avg. time

Attempted

Upvotes

Remove Duplicates from Sorted Array

Easy

15 mins

177.9k

753

Reverse Words In A String

Easy

10 mins

84.4k

628

Merge Two Sorted Linked Lists

Moderate

15 mins

61k

427

Split String

Easy

11.5k

198

Pair Sum

Easy

15 mins

22k

179

Sum root to leaf

Easy

10 mins

6.6k

String Palindrome

Easy

217.7k

Symmetrical Binary Tree

Moderate

25 mins

9.8k

Remove Duplicates From String

Moderate

25 mins

3.7k

Disconnect the ‘GRID’ by removing the minimum number of cities

120

Hard

10 mins

0.5k

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Interview Experiences

Gain the Edge You Need at your next technical interview with Coding Ninjas.s unlimited interview problems practices for Unacademy

Upvote

Unacademy | Software Engineer | Experienced(0.0) | Jan 2022

Published on 1 May 2022

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Unacademy | Software Engineer | Fresher | Feb 2021

Published on 11 Apr 2022

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Unacademy | SDE - 1 | Experienced | Aug 2021

Published on 27 Nov 2022

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Unacademy | SDE - 1 | Experienced(0.0) | Jul 2021

Manish

|Level 1

Off Campus

Mahatma Gandhi Polytechni...

Published on 10 Dec 2022

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Guided Paths

Here is your ultimate guide for cracking your dream job interview, you can choose your tracks and start preparing for Unacademy

Data structures & algorithms (Beginner to Intermediate)

If you are a complete beginner to data structures / want quick content to revise and practise questions for placements, this is the guided path for you . This guided path covers the absolute basics introducing every data structure, its need and then checks your understanding with relevant coding questions and mcqs to solve, so that you can have an all round understanding of the concepts studied.