Acko interview experience Real time questions & tips from candidates to crack your interview

SDE - 1

Acko
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4 rounds | 6 Coding problems

Interview preparation journey

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Preparation
Duration: 2 Months
Topics: DSA, DBMS, Puzzles, OS, System Design
Tip
Tip

Tip 1 : Never never try to cheat in online interview the interviewer will definitely get to know.
Tip 2 : Psuedo code presentation matters a lot so name Your variable properly and with proper indentation.
Tip 3 : Keep on trying even if You feel that's not the right answer so at least put that idea forward.
Tip 4 : Do Leetcode medium questions as much as possible As they are mostly asked in Interviews.

Application process
Where: Campus
Eligibility: No criteria But only 8+ plus CGPA were eventually shortlisted on basis of resume
Resume Tip
Resume tip

Tip 1 : Avoid unnecessary details on Resume
Tip 2 : Make It look clean and also keep it of one page

Interview rounds

01
Round
Medium
Online Coding Test
Duration75 Minutes
Interview date12 Dec 2021
Coding problem2

The round consisted of 2 Coding based based questions.
These question were easy for as I have already done this while preparing.

1. Flip Equivalent Binary Tree

Moderate
25m average time
75% success
0/80
Asked in companies
AdobeUberApple

You have been given the root of two binary trees ‘ROOT1’ and ‘ROOT2’. You need to find if the two trees are flip equivalent or not after performing some flip operations on ‘TREE1’.

A flip operation is defined as: Choose any node and swap the left and right subtrees of that node.

Note:
All the values of the tree are unique.
For Example:
For the given binary trees

binarytree

Tree 1 can be made flip equivalent to Tree 2 by flipping the left and right sub trees of the node with value = 2. 
Try solving now

2. Split Array Into Increasing Subsequences

Easy
15m average time
85% success
0/40
Asked in companies
OlaAckoAdobe

You are given an integer array/list ‘ARR’ of size 'N' that is sorted in ascending order. Your task is to return '1' if and only if you can split it into one or more increasing subsequences such that each subsequence consists of consecutive integers and has a length of at least 3. Else, return '0'.

Note: An increasing sequence is a sequence where the difference between ith and i + 1th number is 1 exactly. For example : 1, 2, 3, 4 or 3, 4, 5 or -1, 0, 1 are all increasing subsequences.

For example:

Given ‘N’ = 4 and ‘ARR’[] = 1, 2, 3, 4.
The answer will be ‘1’ because an increasing subsequence of [1, 2, 3, 4]  having length greater than 3 can be made.
Try solving now
02
Round
Easy
Video Call
Duration60 Minutes
Interview date18 Dec 2021
Coding problem2

The interview started a bit late as I it to be at 11:30 am but started at 12:15pm So Had to wait. Apart from these the overall experience was great and the interviewer was also kind and had a smiling face.

1. Ninja And Alternating Largest

Easy
15m average time
90% success
0/40
Asked in company
Acko

Ninja is given a few numbers, and he is being asked to rearrange the numbers so that every second element is greater than its left and right element.

Suppose the given array is [1, 2, 3, 4, 5] then the rearranged array can be [1, 3, 2, 5, 4].

Try solving now

2. Puzzle

You have measure 4litre using 3 cups of 3,5 and 8 litres.

Problem approach

Tip 1 : Cross quesion the interviewer on whatever doubt You have like asked Is the water infinite.
Tip 2 : Before jumping to a soln always cross verify in your mind once.
Tip 3 : Keep on speaking whatever you think Never be on Doubt make it a healthy conversation.

03
Round
Easy
Video Call
Duration30 Minutes
Interview date18 Dec 2021
Coding problem1

10:30 PM 
Interviewer was Cool.

1. Technical Question

This round was completely about my projects and my previous internships. There was lot of drilling on my projects like motive behind doing it.Futher improvement in Your project.

Problem approach

Tip 1 : Just be true

04
Round
Easy
HR Round
Duration5 minutes
Interview date19 May 2022
Coding problem1

At 10:00 am

1. Basic HR Questions

No problems were asked just said do u want to ask about me or the company. And how was my interview experience.

Here's your problem of the day

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

Skill covered: Programming

What is recursion?

Choose another skill to practice
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