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Software development intern Interview Questions

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What was one of your best achievements on a project in the past?

19 Answers

Answered about a previous internship, mentioned scalability and had a small discussion on that.

Were there any coding questions? And was this for an internship?

There was a coding question. It was for the SDE summer internship.

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To find and return the common node of two linked lists merged into a 'Y' shape.

13 Answers

Determine if an array from 1..n has a duplicate in constant time and space.

13 Answers

You are given an array with n positive integers where all values in the array are repeated except for one. Return the one that is not repeated.

13 Answers

To return the 'm' smallest numbers from a file of 'n' numbers

8 Answers

I was asked two questions. Q 1. You are given two version numbers of a software, like Version 10.3.4 and Version 10.3.41. Write a program to find out which of the version numbers are the latest. If version 1 is latest output -1, if version number 2 is latest output +1 else output 0 if same version. Both the version numbers are taken as string. He also asks to make the program of minimum time complexity as we can. At the end he also asked the difference between an iterative program and one with recurrence and their advantages and disadvantages. Q 2. Given two files with a list of application IDs (or some kind of data) stored in them , write a program to compare the data in the two files and output all the common data found in each. What data structure would you use and why ? Give a minimum time and space complexity algorithm. Why did you choose the particular data Structure or algorithm ?

7 Answers

Make a program that writes a Binary Search Tree to a file. Now create a program that reads those files and recreates a Binary Search Tree.

5 Answers

Given the head pointers to two linked lists of unknown length, find the node of intersection if they do intersect.

5 Answers

I signed NDA for online assessments. For the phone interview, questions about DS and string manipulation. Should be good if can solve medium level HackerRank or Leetcode problems.

7 Answers

string compression: aaabbbbcc ->a3b4c2

5 Answers
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