Google Software Developer Interview Questions, Process, and Tips for Freshers

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Q1. What is dsa and what is advantages
Ans. 
DSA stands for Data Structures and Algorithms. It is essential for efficient problem-solving in software development.
• DSA helps in organizing and managing data effectively

• It improves the efficiency and performance of algorithms

• Common data structures include arrays, linked lists, trees, graphs

• Common algorithms include sorting, searching, and dynamic programming
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Q2. What is linked list
Ans. 
A linked list is a linear data structure where elements are stored in nodes that have a reference to the next node in the sequence.
• Consists of nodes connected by pointers

• Does not have a fixed size like arrays

• Allows for efficient insertion and deletion operations

• Example: Singly linked list, Doubly linked list
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Q3. What is work you want
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Q4. What is cpp and its use case
Ans. 
C++ is a programming language used for developing software applications.
• C++ is a high-level programming language known for its performance and flexibility.

• It is commonly used for developing system software, game engines, and applications that require high performance.

• C++ supports object-oriented programming, generic programming, and low-level memory manipulation.

• Examples of software developed using C++ include operatin...read more
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Q5. What is java and its use case
Ans. 
Java is a popular programming language used for developing a wide range of applications.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is used for developing web applications, mobile apps, desktop applications, and enterprise software

• Java is known for its security features and scalability

• Examples of Java-based applications include Android apps, online banking systems,
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Nice experience, good questions, nice answers

Q1. Phone Interview
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Q2. Question based on array, simple manipulation
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Coding question with medium level difficulty.

Q1. Question related to graph and tree
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Q1. What is the javascript
Ans. 
JavaScript is a programming language used for creating interactive web pages and web applications.
• JavaScript is a high-level, interpreted language.

• It is primarily used for client-side scripting.

• JavaScript can be embedded directly into HTML pages.

• It provides dynamic functionality and interactivity to websites.

• Common uses include form validation, DOM manipulation, and AJAX requests.
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Q2. JavaScript is the Programming Language for the Web.
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Round duration - 75 minutes
Round difficulty - Medium

A 24 hour window was given to us and we can attempt the test anytime in between. It included 2 coding questions. One was easy-medium level and the other one was hard. Along with this 7 debugging MCQ's were given, however they were easy.

Q1. 
Minimum and Maximum Candy Cost Problem
Ram is in Ninjaland, visiting a unique candy store offering 'N' candies each with different costs. The store has a special offer: for every candy you purchase, you c...read more
Ans. 
Find minimum and maximum cost to purchase all candies with special offer of free candies.
• Iterate through the candy costs array and sort it in ascending order.

• For minimum cost, start from the lowest cost candy and take free candies until reaching the next higher cost candy.

• For maximum cost, start from the highest cost candy and take free candies until reaching the next lower cost candy.
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Q2. 
Swap And Maximize Problem Statement
You are given a circular array consisting of N integers. Your task is to find the maximum sum of the absolute differences between adjacent elements by rearranging the a...read more
Ans. 
Find the maximum sum of absolute differences between adjacent elements in a circular array by rearranging the elements.
• Sort the array in non-decreasing order.

• Alternate between picking the smallest and largest elements to maximize the sum of absolute differences.

• Calculate the sum of absolute differences between adjacent elements in the rearranged array.
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Round duration - 75 minutes
Round difficulty - Hard

Q1. 
Connecting Ropes with Minimum Cost
You are given 'N' ropes, each of varying lengths. The task is to connect all ropes into one single rope. The cost of connecting two ropes is the sum of their lengths. Yo...read more
Ans. 
Connect ropes with minimum cost by merging two smallest ropes at a time.
• Sort the array of rope lengths in ascending order.

• Merge the two smallest ropes at a time and update the cost.

• Repeat until all ropes are merged into one.

• Return the total cost as the minimum cost to connect all ropes.
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