Punjab Engineering College (PEC)
Your seniors at Punjab Engineering College (PEC) were your true well-wishers, they shared their placement interview questions for you. 🙏
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I was interviewed in Aug 2021.
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.
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.
Round duration - 30 minutes
Round difficulty - Easy
This was a problem solving round and consisted of puzzles and mathematical problems.
A man fell in a 50m deep well. He climbs 4 meters up and slips 3 meters down in one day. How many days would it take for him to come out of the well?
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.
Tip 1 : Keep at least 2 great projects on resume.
Tip 2 : Try to include only tech-related information in resumé( for SDE roles).
I was interviewed before Sep 2020.
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.
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
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?
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.
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
Tip 1: Add most recent and relevant projects only
Tip 2: you should know each and everything written on your resume
