Punjab Engineering College (PEC)

Tamil Nadu - Other, Tamil Nadu | Prakasam, Andhra Pradesh | Panchkula, Haryana | Pondicherry, Pondicherry

Your seniors at Punjab Engineering College (PEC) were your true well-wishers, they shared their placement interview questions for you. 🙏

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Punjab Engineering College (PEC) Placement Interview Questions

Updated 8 Dec 2024

2 interviews found

I was interviewed in Aug 2021.

3 Interview Rounds

1

Coding Test Round (3 Questions)

Round duration - 90 minutes
Round difficulty - Medium

The test happened at 9 PM, and the duration was of 90 mins. The test was held on Codility platform.

  • Q1. Reach the Destination Problem Statement You are given a source point (sx, sy) and a destination point (dx, dy). Determine if it is possible to reach the destin...read more
  • Q2. Circular Move Problem Statement You have a robot currently positioned at the origin (0, 0) on a two-dimensional grid, facing the north direction. You are given...read more
  • Q3. Buy and Sell Stock Problem Statement Imagine you are Harshad Mehta's friend, and you have been given the stock prices of a particular company for the next 'N' ...read more
2

Video Call Round (1 Question)

Round duration - 45 minutes
Round difficulty - Easy

The timing for this round was around 10 AM. How to optimize website assets loading? Explain Hoisting in javascript.

  • Q1. Count Pairs with Given Sum Given an integer array/list arr and an integer 'Sum', determine the total number of unique pairs in the array whose elements sum up ...read more
3

Coding Test Round

Round duration - 30 minutes
Round difficulty - Easy

This was a problem solving round and consisted of puzzles and mathematical problems.

Interview Preparation Tips

Professional and academic backgroundI completed Electronics & Communication Engineering from Punjab Engineering College(Deemed To be University). Eligibility criteriaAbove 7 CGPAAmerican Express interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, OOPS, OS, DBMSTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Be good at problem solving, accuracy and speed matters.
Tip 2 : Also prepare core CS subjects, OS, OOPS, DBMS.
Tip 3 : Be thorough with your resumé.

Application resume tips for other job seekers

Tip 1 : Keep at least 2 great projects on resume.
Tip 2 : Try to include only tech-related information in resumé( for SDE roles).

Final outcome of the interviewSelected
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I was interviewed before Sep 2020.

4 Interview Rounds

1

Coding Test Round (2 Questions)

Round duration - 120 minutes
Round difficulty - Easy

It consisted of 3 coding questions which were purely based on Data Structures and Algorithms.

Question 1 - Find the length of the longest switching sub-array. An array is called switching if all numbers in even positions are equal and all numbers in odd positions are equal. 


Question 2 - It was a long passage question on Dynamic Programming but the solution was really easy.

Question 3 - Given a string S consisting of N lowercase letters, return the minimum number of letters that must be deleted to obtain a word in which every letter occurs a unique number of times. Ex - "aaaabbbb" should return 1, as when we delete 1 a or 1 b , a and b will have different frequencies.


The major point to note in the coding round was that they did not have any time or space limit, so brute force solutions were also accepted. 
The result of my test was declared just as the test ended and I scored a 100%, but they took a long time to release the final shortlist. There was a gap of about a week between the test and interviews.

  • Q1. Longest Switching Subarray Problem Statement Determine the length of the longest contiguous subarray in a given array of positive integers, where the subarray ...read more
  • Q2. Unique Frequency Problem Statement Given a string 'STR' with lowercase letters, determine the minimum number of deletions required to ensure that every letter ...read more
2

HR Round

Round duration - 40 minutes
Round difficulty - Easy

Amex came for two profiles - Tech Role and Analyst, 19 and 23 people respectively were shortlisted for the interviews. Fortunately, I was shortlisted for both the roles. I was asked basic question of C++ and it was majorly an HR Round

3

Telephonic Call Round

Round duration - 20 minutes
Round difficulty - Easy

It was a fairly simple round conssting of 5 - 6 questions related to coding, puzzles and me.

What are your interests? 
What projects have you done and your field of interest?

4

Face to Face Round (1 Question)

Round duration - 50 minutes
Round difficulty - Easy

This round was purely technical
No introduction was done, straight to the point

My preference was the Tech Role, so as I was selected in this, I never had to give interviews for the Analyst role. In total 5 people were selected in the Analyst profile and 4 in the Tech profile.

In the end, I was offered a 6 months internship at Amex.

  • Q1. Palindrome Linked List Detection Given a singly linked list of integers, determine if it is a palindrome. A linked list is considered a palindrome if it reads ...read more

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Punjab Engineering College(Deemed To be University). I applied for the job as SDE - Intern in BangaloreEligibility criteria7 CGPAAmerican Express interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, Operating System, DBMS, Dynamic Programming, BacktrackingTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Do practice a lot of data structures from renowned websites like LeetCode and also from CodeZen
Tip 2 : In your introduction, when asked, you just need to tell your life story.
Tip 3 : Maintain eye contact with the interviewers and clarify every details about the question before proceeding to the solution

Application resume tips for other job seekers

Tip 1: Add most recent and relevant projects only
Tip 2: you should know each and everything written on your resume

Final outcome of the interviewSelected
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