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15,793 full stack software developer interview questions shared by candidates

You are given a 2D grid of size m x n representing a map where '0' represents land (an island) and '1' represents water. An island is a group of connected '0's horizontally or vertically. You need to write a function that counts the total number of distinct islands in the grid
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Senior Full Stack Developer

Interviewed at Wix

4.1★
Jan 22, 2025

You are given a 2D grid of size m x n representing a map where '0' represents land (an island) and '1' represents water. An island is a group of connected '0's horizontally or vertically. You need to write a function that counts the total number of distinct islands in the grid

1. Given two variables swap it's value with using any third variable by thinking mathematically 2.Given a function which can take Integer 0 and 1, without using any logical and conditional operator return the inputs opposite. 3. SetTimeOut Behaviour inside For Loop 4. An array with some elements, given the length property value made to zero which will be the console output on arr[0] And one or two more stupid questions like this
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Full Stack Developer

Interviewed at Tredence

3.9★
Dec 19, 2023

1. Given two variables swap it's value with using any third variable by thinking mathematically 2.Given a function which can take Integer 0 and 1, without using any logical and conditional operator return the inputs opposite. 3. SetTimeOut Behaviour inside For Loop 4. An array with some elements, given the length property value made to zero which will be the console output on arr[0] And one or two more stupid questions like this

Define the domain model for a system dedicated to CRUD operations on graphs, together with at least the implementation for the all-paths algorithm. The objects the system work with are all fully connected graphs. This was an home assignment with a couple of days of time. As I am a medior developer already mastering the main target language, Scala, the focus was on the abstractions and big pictures rather than the actual code. Less experienced candidates were given the same assignment but with more time, so that they could produce a fully-working prototype and explore points like persistency.
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Full-stack Developer

Interviewed at Cupenya

4.8★
Apr 15, 2015

Define the domain model for a system dedicated to CRUD operations on graphs, together with at least the implementation for the all-paths algorithm. The objects the system work with are all fully connected graphs. This was an home assignment with a couple of days of time. As I am a medior developer already mastering the main target language, Scala, the focus was on the abstractions and big pictures rather than the actual code. Less experienced candidates were given the same assignment but with more time, so that they could produce a fully-working prototype and explore points like persistency.

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