'Coding has over 700 languages', '67% of programming jobs arenâ€™t in the technology industry', 'Coding is behind almost everything that is powered by electricity'
Acko interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
Acko
4 rounds | 7 Coding problems
Interview preparation journey
Preparation
Duration: 2 months
Topics: Data Structures, OOPS, System Design, Dynamic Programming, Puzzles, Competitive Coding
Tip

Tip 1 : Good understanding OOPS
Tip 2 : Practice standard Ds and Algo questions
Tip 3 : Be confident

Application process
Where: Campus
Eligibility: Resume Shortlisting
Resume tip

Tip 1 : Resume should be one page.
Tip 2 : Don't mention those things your not confident of

Interview rounds
01
Round
Easy
Online Coding Test
Duration60 minutes
Interview date15 Dec 2020
Coding problem0

It was an online coding round at HackerRank.

02
Round
Easy
Video Call
Duration50 minutes
Interview date18 Dec 2020
Coding problem3
1. Move Zeros To Left
Easy
10m average time
90% success
0/40
Asked in companies

#### You are given an array 'ARR' of integers. Your task is to modify the array so that all the array elements having zero values get pushe...

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Problem approach

I have used two pointer approach to solve it

2. Operating System

Difference between Process and Thread.
What is multithreading?

3. Rat in a Maze problem
Moderate
40m average time
60% success
0/80
Asked in companies

#### You are given a 'N' * 'N' maze with a rat placed at 'MAZE[0][0]'. Find and print all paths that rat can follow to reach its destination i.e. 'MAZE['N' - 1][...

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Problem approach

I solved it previously, He was checking in my code. I explained him each lin

03
Round
Medium
Video Call
Duration60 minutes
Interview date18 Dec 2020
Coding problem3

First 10 minutes started with the Introduction. Then he asked about my projects. He seemed interested in my projects and asked a lot of questions about them.

1. Matrix Chain Multiplication.
Moderate
40m average time
60% success
0/80
Asked in companies

#### Given a chain of ...

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Problem approach

I give him recursive solution first, then coded dp solution

2. System Design

Design Instagram

Problem approach

1) Study System Design

2) Scale the system accordingly.

3. DBMS

Basic questions like ACID properties.
Difference between mysql and sql etc

04
Round
Easy
HR Round
Duration20 minutes
Interview date21 Dec 2020
Coding problem1
1. General Questions

Why do you want to join the company?
Where do you see yourself in the next 5 years?
What are your strengths and weakness?

Problem approach

Be witty.

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