Postman Interview Questions, Process, and Tips

Round duration - 70 minutes
Round difficulty - Medium

It consisted of 17 MCQ based on networking and 3 coding questions. Among those one coding question was on practical implementation.

Q1. 
Recycling Pens Problem Statement
Imagine you have a certain number of empty pens, and some money in your pocket. For each pen, you can choose to either recycle it for a reward or buy a refill to make it u...read more
Ans. Bruteforce
• We will iterate through all possible values of the usable pen, i.e from 0 to N and try to find out whether we can make these many usable pens or not.
• Let’s say we currently want to find whether we can make X usable pens or not. To do so we will require X refills and buy X refills we need X*C amount of money.
• We keep X pens and sell N - X pens. We will get (N-X)*K amount of money from selling it.
• So total money w...read more
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Round duration - 60 minutes
Round difficulty - Hard

It was around 5-6 p.m. The interviewer was very easy to talk to. They went straight to the questions and asked me if I had any doubts in the end.