Interview Experience 🎯

Round 1: Online Coding Test on HackerRank (90 minutes)

1. 2 Leetcode hard coding questions (I don’t remember those now)
2. CS fundamental questions based on OS, CS, OOP, C++

Round 2: First Interview on Google Meet

• Introduction
• Given a string, find first non-repeating character in the string.
• Find height of the binary tree.
• Difference between deep copy vs shallow copy.
• What is polymorphism?
• The interviewer asked if I had any information to share that was not mentioned in my resume.
• What is a process and a thread in the operating system?
• What is a deadlock?
• Asked about Solapur Police employee transfer project (this project is also mentioned in the HIGHLIGHTS & ACHIEVEMENTS section on pict.edu website).
• Asked about Tech Mahindra internship:
  • How did I get this internship?
  • What work did I do?
  • How was the work divided among 4 interns?
• Any questions for the interviewer?

Round 3: DSA Round on Google Meet (60 minutes)

• Given a non-empty string of size less than 10, containing only ‘i’ and ‘d’ characters.
  • ‘i’ stands for increment operation.
  • ‘d’ stands for decrement operation.
  • Generate an integer array of the same size containing distinct elements, following the order of the given string.
  Example:
  

  code

  1iiidd

  →

  code

  11 2 5 4 3

  (used unique integer values < 10)
  

  code

  1ddii

  →

  code

  13 2 5 6

• You are given an array of size 99. It contains unique elements between 1 to 100 in random order. Find the missing number.
  (Similar question: GeeksForGeeks)
• Check if two linked lists cross each other or not?
  • I explained my approach orally.
• Any questions for the interviewer?

Round 4: HR Round (Phone Call, 10 mins) 📞

🎉 Conclusion: