Housing.com Interview Questions, Process, and Tips

Q1. Given a rotated sorted array, how can you search for a target value efficiently using the binary search algorithm?
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Q2. Other questions on indexing and other stuff
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Aptitude plus 2 basic DSA

Q1. DSA (binary tree traversal)
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Q2. DSA (array questions)
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Q1. OOPs( design calculator)
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Q2. Design Heap( tree)
Ans. 
Design a heap tree data structure
• A heap is a complete binary tree where the value of each node is greater than or equal to the values of its children

• There are two types of heaps: min heap (parent node is smaller than children) and max heap (parent node is larger than children)

• Heap can be implemented using arrays where parent node at index i has children at indices 2i+1 and 2i+2
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Q1. Discussion on strong and weak reference
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Q2. Generics method map implementation
Ans. 
Implement a generics method map in Java
• Create a generic method that takes an array and a function as parameters

• Use a lambda expression to apply the function to each element in the array

• Return a new array with the transformed elements
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Duration 1 hr

1. reverse of link list
2. find link list is circular or not

Q1. How to do inheritance with prototypes
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Inheritance with prototypes allows objects to inherit properties and methods from other objects in JavaScript.
• Create a constructor function for the parent object

• Add properties and methods to the parent object's prototype

• Create a constructor function for the child object

• Set the child object's prototype to be an instance of the parent object
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Q2. Explain closure in JS
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Closure in JS is when a function is able to remember and access its lexical scope even when it is executed outside that scope.
• Closure allows a function to access variables from its outer function even after the outer function has finished executing.

• Functions in JavaScript form closures, which means they 'remember' the variables in the scope where they were created.

• Closures are commonly used in event handlers, callbacks
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