Electrade SDE Intern Interview Questions and Answers

1 hour long test, 1 easy and 1 medium leetcode problem + some apti questions.

Q1. Asked 1 codding question (Medium) * Next permutation of a number. Number was a time stamp (eg 11:55 PM)
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Q1. 3 medium leetcode questions from graphs, queue and dp.
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Q1. Count occurrences in sorted array
Ans. 
Count occurrences of a given element in a sorted array.
• Use binary search to find the first and last occurrence of the element.

• Subtract the indices to get the count.

• Handle edge cases like element not present in the array.
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Q2. Deepest left node in binary tree
Ans. 
Find the deepest left node in a binary tree.
• Traverse the tree recursively and keep track of the depth and whether the current node is a left node.

• If the current node is a leaf node and its depth is greater than the deepest left node found so far, update the deepest left node.

• Return the deepest left node found.

• Example: For the binary tree with root node 1, left child 2, and left child of 2 being 4, the deepest left node...read more
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2 coding question level easy-medium leetcode

Q1. 2 coding question leetcode
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Q2. Dp graph trees stack queue
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Q1. 2 Coding question leetcode easy medium
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It was a 2 hour test having 2 coding questions . Difficulty was easy and medium.

Q1. Two questions were asked . To make a BST from array elements . Snakes and ladder. Besides this interviewer also asked about my projects and basic introduction.
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Don;t remember the leetcode question, was medium

Don't remember the leetcode qyuestion, was medium, had a behavior component, remember the Amazon principles

Q1. Tell us about yourself.
Ans. 
I am a computer science student with a passion for coding and problem-solving.
• Currently pursuing a degree in computer science

• Proficient in programming languages like Java, Python, and C++

• Experience with data structures and algorithms

• Completed internships at tech companies like Google and Microsoft
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Q2. Can you explain any recent projects you have worked on?
Ans. 
Developed a web application for tracking personal fitness goals and progress.
• Used React for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end

• Utilized MongoDB for database storage

• Incorporated chart.js for visualizing progress data
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Q3. Given a sorted linked list, how can you remove duplicates from it?
Ans. 
Remove duplicates from a sorted linked list
• Use two pointers - one to iterate through the list and another to keep track of unique elements

• Compare current node with next node, if they are equal, skip the next node

• Repeat until end of list is reached
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Q4. There was a String based leetcode hard level question
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2 hours mcqs from all cse related topics + 1 coding question

3 coding questions easy level

Q1. I do not remember
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It was mcqs with one coding question

It consisted of 2 medium coding ques

Q1. It was a binary tree medium level leetcode ques
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Q2. It was majority element ques from leetcode
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