# What are Bitwise Operators?

## Why use Bitwise operators?

In computer programming, a Bitwise operation operates on one or more bit patterns or binary numerals at the bit level.

• They are fast and simple actions.
• The processor directly supports them.
• They are used to manipulate values for comparisons and calculations.
• Bitwise operations are incredibly simple and faster than arithmetic operations.

Bitwise algorithms are used to perform operations at the bit level or to manipulate bits in different ways.

Bitwise operations are much faster and are sometimes used to improve the efficiency of a program.

## Remember this

Any indication of a bit’s position is counted from the right (least significant) side to the left.

For example

The binary value 0001 (decimal 1) has zeroes at every position but the first (the rightmost) one.

Bit ManipulationData Structures and Algorithms

Gopi is an engineering leader with 12+ of experience in full-stack development—a specialist in Java technology stack. He worked for multiple startups, the European govt, and FAANG in India and Europe.

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## Leetcode 217: Contains Duplicate

This question marks the first problem when working on duplicate data, either integers or strings etc. Companies that have asked this in their coding interview are Amazon, Apple, Netflix, Google, Microsoft, Adobe, Facebook, and many more top tech companies. Problem statement Given an integer array nums, return true if any

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## Leetcode 121: Best Time To Buy and Sell Stock

The Best time to buy and sell stock problem is a classic problem that can be solved using the Greedy approach. This is one of the most popular questions asked in such interviews. Companies that have asked this in their coding interview are Facebook, Amazon, Apple, Netflix, Google, Microsoft, Adobe,

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## Bit Manipulation Course Overview

Overview In this course, you will learn how to solve problems using bit manipulation, a powerful technique that can be used to optimize your algorithmic and problem-solving skills. This is one of the most important/critical topics when someone starts preparing for coding interviews for FAANG companies. To kick things