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The problem involves processing a 2D array representing an image, where each pixel is either a `0` or `1`. The array may contain one or more rectangular regions of `0`s surrounded by `1`s. The tasks are: 1. **Identify Rectangles**: Write a function that detects all rectangles of `0`s in the 2D array, returning the coordinates of the top-left and bottom-right corners for each rectangle. 2. **Handle Multiple Rectangles**: Adapt the solution to correctly identify and manage multiple separate rectangles within the image. 3. **Check Point Inside Rectangles**: Implement functionality to determine if a given point is inside any of the detected rectangles.
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Senior Android Developer

Interviewed at Reddit

3.9★
Oct 11, 2024

The problem involves processing a 2D array representing an image, where each pixel is either a `0` or `1`. The array may contain one or more rectangular regions of `0`s surrounded by `1`s. The tasks are: 1. **Identify Rectangles**: Write a function that detects all rectangles of `0`s in the 2D array, returning the coordinates of the top-left and bottom-right corners for each rectangle. 2. **Handle Multiple Rectangles**: Adapt the solution to correctly identify and manage multiple separate rectangles within the image. 3. **Check Point Inside Rectangles**: Implement functionality to determine if a given point is inside any of the detected rectangles.

I was interviewed by two employees from the IT development team, I needed to remove duplicate entries from an array without modifying the order. On my answer I used a list, the answer was correct but I needed to improve it using hash map. They asked me how a binary tree works and I the complexity using my solution, searching with binary trees and hash maps and I couldn't explain at all.
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Android Developer

Interviewed at Booking.com

4.1★
Jan 27, 2014

I was interviewed by two employees from the IT development team, I needed to remove duplicate entries from an array without modifying the order. On my answer I used a list, the answer was correct but I needed to improve it using hash map. They asked me how a binary tree works and I the complexity using my solution, searching with binary trees and hash maps and I couldn't explain at all.

ArrayList, Linked List what happens internally? Loaders, MVVM, count number of objects for a particular class. count number of repeated elements in an array using single loop let, apply in kotlin lamda expressions in java, why they introduced these
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Android Lead

Interviewed at People Tech Group

2.6★
Sep 14, 2019

ArrayList, Linked List what happens internally? Loaders, MVVM, count number of objects for a particular class. count number of repeated elements in an array using single loop let, apply in kotlin lamda expressions in java, why they introduced these

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