Visa Interview Experience for Internship (On-Campus) 2022

Difficulty Level: Medium

Interview Experience from a Tier – 1 Engineering college. The whole process consists of 2 – Rounds and there were no CGPA cutoffs and open for all tech branches.

Round 1(Online Assessment / Coding Test):  The first round was an online coding test on the Hacker Rank platform that consists of 2 medium-level coding questions based on data structure and algorithm and was conducted for 60 minutes. The questions were quite tricky but can be solved if you practiced well on coding platforms like GFG and leetcode. The question was based on (Two pointer approach, Greedy, and standard DP questions). I have been shortlisted for an interview by doing both questions correctly within 15-20 minutes.

Coding questions : 

• Given a binary string s , you have to return minimum number of operations required to make all the characters of string ‘1’. you can replace two adjacent characters by XOR  value of them and if you cannot make all characters ‘1’ return -1.
• Given an array consisting positive integers , we have to return length of longest increasing subsequence . Length of Longest Increasing Subsequence:  https://www.geeksforgeeks.org/longest-increasing-subsequence-dp-3/

( Tip: just write the most optimal solution you know, brute force wouldn’t work in OA )  

Round 2( Technical + HR):  The interviewer asked me to introduce myself ( Tip: prepare your introduction properly as the interviewer can ask questions from it also). He started with the project discussion. I made 3 web development projects (Typing thunder was one of them and I explained all the features of typing thunder project, I explained my projects one by one well as I learn the method of explaining projects through my seniors.  Then he asked some questions regarding my projects, and after that, he asked me a LEETCODE hard question. 

Binary tree camera:  https://leetcode.com/problems/binary-tree-cameras/ 

I have already solved this question while doing practice on leetcode, but I was stuck for the first 5-7 minutes on this question. I have no idea what to do, but then he gave me a little hint. I got the hints quickly and we started discussing approaches and I wrote the code properly (tips: use good variable names ) After that he moved on to HR-based questions : 

• What are your strengths and weakness?  
• Tell me a situation in which you are in stressed and what you did to a comeback. Then he was quite happy with my performance. 
• I also asked 2-3 questions regarding the visa internship program and took some guidance from him.

( Pro TIP: Prepare for HR-based questions also, as it is equally important for the interview perspective ) 

Then I got a selection mail.