SecureW2 Software Engineer Level 1 Interview Questions and Answers

Q1. Complete oops concepts with examples?
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include encapsulation, inheritance, and polymorphism.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Inheritance allows classes to inherit at...read more
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Q2. Virtual function and virtual Destructor?
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Q3. Multithreading with example?
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Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for improved performance and responsiveness.
• Multithreading allows multiple tasks to be executed simultaneously on a single CPU core.

• Each thread has its own program counter, stack, and set of registers.

• Example: A web browser using multithreading to load a webpage while simultaneously downloading images in the background.
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Q1. Oops, concepts with examples?
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Q2. Matrix rotate by 180 degrees?
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Rotate a 2D matrix by 180 degrees in place without using extra space.
• Iterate through the matrix and swap elements symmetrically across the center row.

• Use two pointers, one starting from the first row and the other from the last row, to swap elements.

• Repeat the swapping process for each row until the entire matrix is rotated.

• Example: Input matrix = [[1,2,3],[4,5,6],[7,8,9]], Output matrix = [[9,8,7],[6,5,4],[3,2,1]]
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Coding test on hackerrank comprising medium level Leetcode questions

Q1. Linked List implementation, binary tree left, right view
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