Codenation

We conceive ideas for DevFactory, part of the engineering group of ESW Capital, one of the largest privately held software companies worldwide. In addition to building our own software, we ideate upon and further improvise the products at DevFactory.

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

Allocate Books

Moderate

10 mins

152.2k

1.6 k

Count Inversions

Moderate

40 mins

147k

1.1 k

Painter's Partition Problem

Moderate

25 mins

107k

900

Best Time to Buy and Sell Stock

Moderate

20 mins

94.5k

567

Product Of Array Except Self

Easy

26 mins

43.5k

529

Next Smaller Element

Moderate

25 mins

79.8k

488

K Largest Element

Moderate

10 mins

22.4k

451

Convert String

Easy

15 mins

38.6k

324

Longest Consecutive Sequence

Moderate

40 mins

44.2k

282

Trapping Rain Water

Moderate

15 mins

33.2k

282

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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 Codenation

Upvote

Codenation | SDE - Intern | Fresher | Aug 2020

Tushar Amrit

|Level 4

On Campus

Maulana Azad National Ins...

Published on 17 Nov 2020

Upvote

Codenation | SDE - Intern | Fresher | Nov 2019

Anonymous

|Level 1

Off Campus

Delhi Technological Unive...

Published on 17 Nov 2020

Upvote

Codenation | SDE | Fresher | Aug 2021

Published on 15 Jul 2022

Upvote

Codenation | SDE - Intern | Fresher | Oct 2020

Published on 9 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 Codenation

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.