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A disguised topological sort problem. I was given a list of app actions like ["Swipe up to Home", "Search 'Photos'", "Tap on Search Bar", "Click Download", "Launch App"] and a set of order constraints like ["Launch App, Tap on Search Bar", "Tap on Search Bar, Search 'Photos'", "Click Download, Swipe up to Home"]. The task was to return any valid sequence of the actions that satisfied all the given constraints, outputting them as a single string joined by " - ".
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QA Automation Test Engineer, Dublin

Interviewed at Apple

4.1★
Jun 30, 2025

A disguised topological sort problem. I was given a list of app actions like ["Swipe up to Home", "Search 'Photos'", "Tap on Search Bar", "Click Download", "Launch App"] and a set of order constraints like ["Launch App, Tap on Search Bar", "Tap on Search Bar, Search 'Photos'", "Click Download, Swipe up to Home"]. The task was to return any valid sequence of the actions that satisfied all the given constraints, outputting them as a single string joined by " - ".

Given a Bank class java code, list all the test cases you would come up with. Given a tree, decide if it's a binary tree. Given a tree node and integer number, write a method that returns true/false if any path from that node sums up to that number. Given a matrix of 0 and 1, return a set of connected unions of 1s. More code on recursion, Stack, Queue
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Senior Software Engineer, Test and Automation

Interviewed at Cloudera

4.1★
Nov 14, 2016

Given a Bank class java code, list all the test cases you would come up with. Given a tree, decide if it's a binary tree. Given a tree node and integer number, write a method that returns true/false if any path from that node sums up to that number. Given a matrix of 0 and 1, return a set of connected unions of 1s. More code on recursion, Stack, Queue

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