Alien Technology Transfer Interview Questions and Answers

Given a rotated sorted array, find the index of a given integer 'K'.

• Perform binary search to find the pivot point where the array is rotated.

• Based on the pivot point, apply binary search on the appropriate half of the array to find 'K'.

• Handle cases where 'K' is not present in the array by returning -1.

• Example: For ARR = [12, 15, 18, 2, 4] and K = 2, the index of K is 3.

Calculate minimum jumps required to reach the last shop using trampolines, or return -1 if impossible.

• Iterate through the array of shops while keeping track of the maximum reachable shop from the current shop.

• If at any point the maximum reachable shop is less than the current shop, return -1 as it's impossible to reach the last shop.

• Return the number of jumps made to reach the last shop.

Design a file searching functionality with indexing for Windows and Mac.

• Implement a search algorithm to quickly find files based on user input.

• Create an index of file names to improve search speed.

• Support both Windows and Mac operating systems.

• Utilize system APIs for file access and indexing.

• Provide a user-friendly interface for searching and browsing files.

• Consider implementing filters for file type, size, and date modified.

Designing a system for MakeMyTrip

• Utilize a microservices architecture to handle different functionalities like flight booking, hotel reservations, and holiday packages

• Implement a robust backend system to handle high traffic and ensure scalability

• Incorporate a user-friendly interface for easy navigation and booking process

• Integrate payment gateways for secure transactions

• Include features like personalized recommendations, loyalty programs, and customer support chatbots

• Utilize ...read more

Given n seats and m people seated randomly, find the minimum number of hops to seat them together.

• Find all possible contiguous groups of m seats

• Calculate the number of hops required to move each group to the center seat of that group

• Return the minimum number of hops required

Design makemytrip

• Create a user-friendly website and mobile app for booking flights, hotels, and holiday packages

• Include features like price comparison, customer reviews, and loyalty rewards

• Partner with airlines, hotels, and travel agencies to offer a wide range of options

• Implement secure payment gateways and customer support services

• Use data analytics to personalize recommendations and improve user experience