Tredence Analytics interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
Tredence Analytics
3 rounds | 8 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 months
Topics: Data Structures and Algorithms, Data Analysis, Python Libraries, SQL, OOPS
Tip 1 : Practice coding questions till you are able to tackle medium level questions easily
Tip 2 : Be proficient in the project which you have mentioned in your resume.
Application process
Where: Campus
Eligibility: Above 60 percentage in 10th, 12th and Btech upto 7th Semester
Tip 1 : Never Lie about technologies you know
Tip 2 : Project shouldn't be copied from online sources even if you take help then do some your own tweaks or add new features and you should know all workings of project
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 Minutes
Interview date8 Apr 2021
Coding problem2
The round was scheduled in afternoon time.
HackerEarth test link was shared beforehand
All the instructions were provided in the welcome page of test link.
It was proctored test
1. Check If The String Is A Palindrome
Easy
10m average time
90% success
0/40
Asked in companies
You are given a string 'S'. Your task is to check whether the string is palindrome or not. For checking palindrome, consider alphabets and numbers only and ignore the symbols and whitespaces.
Note :
String 'S' is NOT case sensitive.
Example :
Let S = “c1 O$d@eeD o1c”.
If we ignore the special characters, whitespaces and convert all uppercase letters to lowercase, we get S = “c1odeedo1c”, which is a palindrome. Hence, the given string is also a palindrome.
Problem approach
Step1 : I started loop from 1st element to length/2 of array and checked first character is equal to last character and second character to the 2nd last so on
Step 2 : if any character mismatches return false
Step 3 : if every character matches and loop has run fully then in last return True.
2. First Repeated Character
Moderate
30m average time
70% success
0/80
Asked in companies
You are given a string 'STR' of lowercase English alphabets. You need to find the repeated character present first in the string.
Example:
If the string is: “abccba”, then the first repeated character is ‘c’, but the repeated character that is present first in the string is ‘a’. You need to print ‘a’.
Note:
Keep in mind that you need to print the repeated character that is present first in the string and not the first repeating character.
Problem approach
Step1 : I looped though the string for each character and searched for the same in rest of the string.
Step 2 : It used nested loops.
Step 3 : when we find repeated character save index of it and return it after breaking from loop.
I didn't used best approach as time was limited.
02
Round
Medium
Video Call
Duration35 minutes
Interview date15 Apr 2021
Coding problem3
It was in afternoon 3pm.
Interview platform was Microsoft teams.
Interview link was shared a day before.
Interviewer was professional.
1. Pair Sum
Easy
15m average time
90% success
0/40
Asked in companies
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to return the list of all pairs of elements such that each sum of elements of each pair equals 'S'.
Note:
Each pair should be sorted i.e the first value should be less than or equals to the second value.
Return the list of pairs sorted in non-decreasing order of their first value. In case if two pairs have the same first value, the pair with a smaller second value should come first.
Problem approach
Step 1 : First take an empty hash table H
Step 2 : Do following for each element Arr[i] in Arr[]
1.) If H[y – A[i]] is set then print the pair (Arr[i], x – Arr[i])
2.) Add that Arr[i] into hash table H.
2. Project based Question
I was asked thoroughly about my Resume mentioned Data analysis project.
What is the real world issue in Data cleaning for sentiment analysis.
Basic questions about Python data analysis libraries such as pandas, seaborn like what are there uses and where are they used.
Asked about random forest and its basic working.
Problem approach
Tip 1 : Mention only the projects which you know fully.
Tip 2 : Try to provide O(N) solutions only after discussing Naive approach.
3. DBMS Question
SQL query to find the first names in ending with n.
Select names of city in database which ends with n.
Problem approach
Tip 1 : Go through basic SQL queries
Tip 2 : Be good in DBMS basics.
03
Round
Medium
HR Round
Duration25 Minutes
Interview date16 Apr 2021
Coding problem3
It was held around 4pm.
Scheduled on MS teams.
Interview link shared one day before.
The interviewer was pretty chill and made me comfortable.
1. Basic HR question
I was asked regarding situation where a company approaches me in pandemic time and asks that demand is high but supply is low how to handle this situation
Problem approach
Tip 1 : I told first we should remove middle man which can stock supplies as well as figure out which place has more demand so that we can focus on our loyal customers first.
Tip 2 : Next we should launch an emergency helpline if someone urgently needs the product for emergency use.
Tip 3 : We have to maybe outsource some of the parts of the product to make production faster.
2. Puzzle
How many cars in your city. Guestimate.
Problem approach
Tip 1 : Took Approx population of city and divided the number by 5 for number of families in city
Tip 2 : Further divided those families according to economic scale.
Tip 3 : Provided upper middle class family percentage with 1 car per family and rich family percentage in city which is pretty less with 2.5 cars per family which also covers the upper limit and lower cases of some lower middle class families which have cars.
3. Basic HR Question
Why to join this company?
Problem approach
Tip 1 : Go through the company and its history
Tip 2 : be ready with your ambition that why do you want to join.
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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