Tiger Analytics Interview Questions, Process, and Tips

There are 20 Aptitude Question (time to solve these 20 question is 30 minutes). Then 10 MCQ Questions on Computer Science Fundamentals (time 10 minutes).

There are 5 question based on DSA 3 question of 20 marks and 2 questions of 50 marks. You need to any two question of 20 marks questions and one of 50 marks question. Total time you get to solve these question is 60 minutes.

Q1. Get Second highest element from an array (duplicates elements are allowed). Required T.C-->O(N) Single traversal. S.C--->O(1)
Ans. 
Get second highest element from an array of strings with O(N) time complexity and O(1) space complexity.
• Initialize two variables to store the highest and second highest elements.

• Traverse the array and update the variables accordingly.

• Return the second highest element.

• Handle edge cases like empty array or array with only one element.
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Q2. Sort nearly sortes array.
Ans. 
Sort nearly sorted array using min heap
• Create a min heap of size k+1

• Insert first k+1 elements into min heap

• For remaining elements, extract min and insert new element

• Extract all remaining elements from min heap

• Time complexity: O(nlogk)

• Example: ['apple', 'banana', 'cherry', 'date', 'elderberry']
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Q3. Coffiecent of x^7 in equation ? y=(x^101-1)(x^100+1)(x^99-1)...........................................(X^0+1)
Ans. 
Coffiecent of x^7 in a given equation
• Use the binomial theorem to expand the equation

• Identify the term with x^7

• The coefficient of x^7 is the coefficient of that term
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Q4. Some more probabilty and statistic questions exactly didn't remember.
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Probability, coding, coordinate geometry , debugging, predict the output

1 hour test 3 questions , one was on numbers I don't remember much , random people get selected in 3rd round in campus placements

Q1. 1.) factorial code 2.) 2 probability questions 3.) prime factors 4.) any questions?
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2 coding questions and around 20 aptitude questions

Q1. 2 easy type coding questions
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Q2. 3 to 4 probability questions. 1 was really hard.
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Q3. Their main focus was statistics part.
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Q1. Spark Concepts, Performance Tuning
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Q1. Discussion about CTC
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