Author: prakashsinghabody@gmail.com

Interview Questions

FIBONACCI NUMBER

Leetcode Problem #509 Problem statement The Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is, F(0) = 0F(1) = 1F(n) = F(n – 1) + F(n – 2), for n > 1. Given n, calculate F(n). JAVA CODE FIBONACCI NUMBER Recursion solution […]

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Interview Questions

Power of 2

Leetcode Problem #231 Problem statement Given an integer n, return true if it is a power of two. Otherwise, return false. An integer n is a power of two, if there exists an integer x such that n == 2x. Power of 2 Why (n&(n−1))=0 correct ? How to use Bitwise Operator ? Operator Description Java C++. Python3 Golang Result Explanation & Bitwise AND […]

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Interview Questions

5 SOLID Principles in Interview Preparation

Preparing for an interview in the field of software engineering, particularly when focusing on system design or object-oriented programming, often involves understanding and applying the SOLID principles. These principles are a set of design guidelines that help make systems more understandable, flexible, and maintainable. Here’s a detailed overview of each SOLID principle and how to […]

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Coding Interview Patterns
Interview Questions

Coding Interview Patterns: 8 Must-Know Techniques for Success (2025 Guide)

Coding interview patterns are the key to cracking technical interviews at top tech companies. In this guide, you’ll quickly review 8 essential ones in 5 minutes. Summary:This blog is your 5-minute last-minute revision sheet covering 8 essential coding patterns that consistently appear in top tech interviews. From two pointers to topological sort, this is the […]

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