BNY Mellon Interview Experience | On-Campus Summer Internship 2021
Round 1: This was an online coding round conducted on the Hackerrank platform and consisted of 4 questions.
Easy (50 Marks): Length of the longest subarray with a sum less than or equal to k.
Medium (75 Marks): Finding the maximum of minimums of all the subarrays of size K.
Medium (75 Marks): I don’t remember this one, but it was easy.
Hard(100 Marks): We were given a total number of nodes and edges connecting each node, we had to find the sum of ceil(sqrt(no. of nodes )) in each graph.
I was able to do the easy one completely and for the other two medium questions and I was able to get 13/15 and 14/15 test cases for them with just brute force and didn’t try to optimize it.
I wasn’t able to do the 100 Marks one as I was not familiar with graphs coding.
A lot of students had applied and 24 were selected after this round, I was one of them.
Round 2: Began with a general introduction and then the interviewer asked this question,
Given two binary images(binary Matrices) find the largest submatrix that matches in both the images.
I gave him a brute force approach, I knew this had to be done with graphs, he asked me to code the brute force solution and then I told him how we can apply DFS to this problem and told him that I was not familiar with graphs coding, he looked satisfied, then he started asking me CS-related questions:
What is the use of pointers in C++?
How does encryption works?
Is https stateful or stateless?
And then he asked me a few general oops related questions.
He moved onto my resume and I had done projects related to ML, he just asked one question, supervised vs unsupervised algorithms.
After this, I was informed in just a few minutes that I was selected for the next round.
And the HR round started after about 20 mins of Round 2,.
He asked me a general question like:
I had previously done an internship, he asked about that.
He then asked about the projects mentioned in my resume.
Where do you see yourself in 5 years?
What do you know about BNY Mellon?
A situation where you exceeded your own expectations.
Finally, I was one of the 3 students selected for the internship.
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