I applied through my campus.

There was an online test to begin with, which consisted of 10 MCQs (topics like quantitative aptitude, finding outputs of C programs, Unix, etc.) and 3 programming questions from HackerEarth (topics like math-related problems, logic and string manipulations, and encoding/decoding of strings).

Time limit: 90 minutes. Difficulty: Hard. Out of 100+ students, they narrowed it down to 5. So, we had to nail the aptitude online test.

Then came 3 rounds of technical interviews. It was the same old routine of asking normal interview questions and mixing them with programming questions. The interviewer wanted us to write the programs with correct syntax and all. So, learn data structures and algorithms, top to bottom. Make sure you know everything on your resume, as each interviewer will ask about the projects and, if possible, write a snippet of the code in front of them.

Time: 30 to 60 minutes (each interview). Difficulty: Average to Hard. Out of the 5, 3 were chosen for HR.

The HR round was very simple; the interviewer was a friendly guy with normal HR-related questions.

Time: 10 minutes. Difficulty: Easy. Out of the 3, 2 got the job, and 1 got an internship that will convert to full-time based on work.

1. Find the nth node from the end of a linked list in one pass.
2. Given an array, add its elements to an empty binary search tree.
3. Hash Tables: Write a program to find a count of two elements in an array that have sum X.
4. What are hashcode and equals methods in Java?
5. State the time complexity for each question.