Paytm Interview Experience | Set 13 (For Experienced)

1st Round : Machine Coding Round
It was machine coding round having two coding questions.
1) Based on tree . (Solved using Brute force , didn’t pass all test case.)
2) Array and HashMap related problem. Solved in O(n) passed all test case.

2nd Round : Tech Interview
1) Reverse linked list and some basic algorithms questions.
2) Write a program to convert decimal Number to Hexa-decimal.
3) Some Database design related problems.
4) Some sql queries.

I answered almost all questions of 2nd Round.

3nd Round : Tech Interview
1) re-arrange array element in such a way so combining all array element will result in maximum number.
2) 2 Puzzles
3) Some API related questions

Didn’t solved puzzle (Non-technical).

4th Round : Tech Interview
interviewer was VP of the company.
1) implement function which add n days to given date without using inbuilt library. (Production level code was required.)
2) There are n Thread , n/2 thread are producer and n/2 are consumer, number produced by producer-1 thread must be consumed by consumer-1 thread. Thread must also run in order, producer 1, then consumer 1, again producer 2 and then consumer 2…so on…..
(Production level code was required.)

wrote both of code with zero errors.

5th Round : HR
HR just told me you are selected and asked me about salary expectation.

 

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