JPMorgan Chase & Co. Software Developer Intern Interview Questions, Process, and Tips

3 coding questions related to dp and graph

Round duration - 60 Minutes
Round difficulty - Easy

An online coding round was help which consisted of 2 coding questions. 
 

• Q1. Sudoku Solver You have been given a 9x9 2d integer matrix 'MAT' representing a Sudoku puzzle. The empty cells of the Sudoku are filled with zeros, and t...read more View Answers (2)
• Q2. Reverse Words in a String You are given a string of length N. You need to reverse the string word by word. There can be multiple spaces between two words and th...read more View Answers (2)

Round duration - 30 Minutes
Round difficulty - Hard

This round was majorly about the projects I had done and coding questions. The interviewer had gone through my resume and told me to explain my projects in brief. After that, he asked some questions about my projects and how I would handle them in different situation. Then he asked 2 coding questions.

• Q1. Rectangles In NxN Board You are given a positive integer N. Your task is to find the number of possible rectangles, excluding squares, in a N x N chessboard. Ex...read more View Answers (1)

Round duration - 45 Minutes
Round difficulty - Hard

It was an online test on hackerrank. They asked us to turn on video and audio of laptop. It consisted of two programming questions. After Round 1 around 54 were shortlisted for the technical interview process.

• Q1. Sort An Array of 0s, 1s and 2s You have been given an array/list ARR consisting of ‘N’ elements. Each element in the array is either 0, 1 or 2. Now, your task i...read more View Answers (3)
• Q2. Shortest Path in a Binary Matrix You have been given a binary matrix of size 'N' * 'M' where each element is either 0 or 1. You are also given a...read more View Answers (2)

Round duration - 60 Minutes
Round difficulty - Easy

It was a technical interview. It was on a Zoom call, and we have to write code on hackerrank. Then he asked the languages I code, I told him C++. Then he asked me two coding questions:

1. Given an array, print all the pairs which have a sum equal to the given number.
2. Given string print, a word with a maximum number of occurrences, and I have to think of all the worst cases. Then he asked me to solve the same question using another approach.
There was a discussion on time and space complexity in both the question.

Then he asked me why do you want to join JPMC and then asked me if I have any questions from him.

• Q1. Pair Sum 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 s...read more View Answers (3)
• Q2. Most Frequent Word You are given a paragraph that may have letters both in lowercase and uppercase, spaces, and punctuation. You have also given a list of banne...read more View Answers (3)

Round duration - 65 minutes
Round difficulty - Medium

It was around 6 pm and was held on Hackerrank. Having switched on WebCam during the entire duration was mandatory. We were required to solve 2 questions under 65 mins. Solving one problem completely, along with some of the test cases of another, was enough for getting shortlisted.

• Q1. Rearrange words in a sentence You are given a sentence 'TEXT'. Each word of 'TEXT' is separated by a single space and the first letter of 'T...read more View Answers (2)
• Q2. Sudoku? You have been given a 9 X 9 2D matrix 'MATRIX' with some cells filled with digits(1 - 9), and some empty cells (denoted by 0). You need to find...read more View Answers (3)

Round duration - 35 minutes
Round difficulty - Medium

The interview started with my brief introduction, and the interviewer then proceeded to ask some questions. I was asked to write a code for these two questions:
1. Find the distances between two given nodes of a binary tree.
2. Find the next greater number with the same set of digits.
After I was able to solve both questions, he proceeded to ask some questions about my projects. He seemed interested in the ML project and asked some basic questions regarding the same. We had a brief discussion on how Machine learning can be used in the Chemical Engineering field. He asked me why I was aspiring to become a software engineer despite having a Chemical engineering background. The round ended with me asking him about the types of projects interns are provided to work on at JPMC

• Q1. Distance between two nodes of a Tree Given a binary tree and the value of two nodes, find the distance between the given two nodes of the Binary Tree. Distance ...read more View Answers (3)
• Q2. Next Greater Number You are given a string S which represents a number. You have to find the smallest number strictly greater than the given number which contai...read more View Answers (2)

Round duration - 20 minutes
Round difficulty - Easy

This round was comparatively short. It also started with my brief introduction. The interviewer then asked me about my area of interest, which was Data Structure and Algorithms. He asked me how to find the Nth node from the end in a linked list using a single traversal and LRU Cache implementation. He also seemed interested in the ML Project and asked to explain it in brief. He then gave me a situation wherein I had to make a model for a self-driving car. I gave him a basic idea of how the model will be trained, and he was satisfied. The round ended with him asking generic questions like 'Why JPMC?' , 'Why I chose to code despite belonging to the non-CSE background.'

• Q1. Delete Kth node From End You have been given a singly Linked List of 'N' nodes with integer data and an integer 'K'. Your task is to remove the ...read more View Answers (4)
• Q2. LRU Cache Implementation. Design and implement a data structure for Least Recently Used (LRU) cache to support the following operations: 1. get(key) - Return th...read more View Answers (3)

Round duration - 10 minutes
Round difficulty - Easy

It was late at night (around 12:30 am) but was crisp and short. HR was really friendly. I was called for the HR round on the same day as the other two rounds. HR asked me why I chose JPMC and why I aspire to become a software engineer. He then asked me about my skill set and how I will enhance it if I got selected. He then asked if I had any questions for him, where I asked him how the virtual working environment has been different from the office experience at JPMC, and if there were any significant challenges.

• Q1. General Questions

  Why I chose JPMC and why I aspire to become a software engineer?
  How I will enhance my skill set if I was selected?

  View Answers (1)

Round duration - 30 minutes
Round difficulty - Medium

• Q1. Populating Next Right Pointers In Each Node You have been given a complete binary tree of ‘N’ nodes. The nodes are numbered 1 to ‘N’. You need to find the ‘next...read more View Answers (2)

Round duration - 10 Minutes
Round difficulty - Easy

• Q1. Basic HR Questions

  Are you willing to relocate?

  What are your expectations?

  View Answers (1)