40+ Groww Interview Questions and Answers

Determine the minimum and maximum amounts of money needed to purchase all candies with a special offer.

• Iterate through the candy costs array to find the minimum and maximum costs.

• Consider the special offer of getting up to 'K' additional candies for free.

• Calculate the minimum cost by selecting the cheapest candies and taking free ones.

• Calculate the maximum cost by selecting the most expensive candies and taking free ones.

Given a dictionary of words and a continuous string, generate all possible sentences by inserting spaces.

• Use recursion to generate all possible combinations of words from the dictionary to form sentences.

• Check if a substring of the sentence matches any word in the dictionary, if so, recursively call the function with the remaining substring.

• Keep track of the current sentence being formed and add it to the result when the entire sentence is processed.

• Handle edge cases like emp...read more

Determine the maximum profit achievable with at most K transactions by buying and selling stocks.

• Iterate through the array and keep track of the minimum price to buy and maximum profit for each transaction.

• Use dynamic programming to store the maximum profit at each day with each possible number of transactions.

• Consider edge cases such as when K is 0 or when the array is empty.

• Example: For input N = 6, PRICES = [3, 2, 6, 5, 0, 3], K = 2, the output should be 7.

Calculate minimum steps for a Knight to reach target position on a chessboard.

• Use BFS algorithm to find the shortest path from Knight's starting position to target position.

• Consider all possible moves of the Knight on the chessboard.

• Keep track of visited positions to avoid revisiting them.

• Return the minimum number of moves required to reach the target position.

Replace elements in an array with their corresponding ranks based on given rules.

• Iterate through the array and assign ranks based on the rules provided.

• Handle equal elements by assigning them the same rank.

• Return the modified array with elements replaced by their ranks.

Remove the middle node from a singly linked list of integers.

• Identify the middle node using slow and fast pointers technique.

• Update the pointers to remove the middle node.

• Handle cases where there are two middle nodes by removing the first one.

• Return NULL if no middle node exists.

• Achieve O(N) time and O(1) space complexity with a single traversal.

Detect if a singly linked list forms a cycle by checking if a node's next points back to a previous node.

• Use Floyd's Cycle Detection Algorithm to determine if there is a cycle in the linked list.

• Maintain two pointers, one moving at double the speed of the other, if they meet at any point, there is a cycle.

• If one of the pointers reaches the end of the list (null), there is no cycle.

Implement a stack with getMin operation in O(1) time complexity without using extra space.

• Use two stacks - one to store the actual elements and another to store the minimum values encountered so far.

• When pushing an element, check if it is smaller than the current minimum and if so, push it onto the minimum stack.

• When popping an element, check if it is the current minimum and if so, pop from the minimum stack as well.

• For getMin operation, simply return the top element of the m...read more

Find the Next Greater Element for each element in a list of integers.

• Iterate through the list of integers from right to left.

• Use a stack to keep track of elements for which the Next Greater Element is not yet found.

• Pop elements from the stack until a greater element is found or the stack is empty.

• Assign the Next Greater Element as the top element of the stack or -1 if the stack is empty.

The task is to output the right view of a binary tree, which includes the nodes visible when observed from the right.

• Perform a level order traversal of the binary tree.

• For each level, add the rightmost node to the result list.

• Print the result list as the right view of the binary tree.

• Handle null nodes by skipping them during traversal.

Print the left view of a binary tree given in level order form.

• Traverse the tree level by level and print the first node of each level

• Use a queue to keep track of nodes at each level

• Consider null nodes as well while traversing the tree

The drop in average revenue per user for Swiggy could be due to various reasons.

• Increased competition from other food delivery apps

• Decrease in the number of orders per user

• Discounts and offers provided by Swiggy to attract new users

• Change in user behavior due to COVID-19 pandemic

• Increase in delivery charges or service fees

Yes, I would continue working for Groww.

• I believe in the mission and vision of Groww and want to contribute to its growth.

• Having a successful startup idea with 100k users onboarded is a great achievement, but it doesn't guarantee long-term success.

• I would explore the possibility of integrating my startup idea with Groww's existing platform to create a win-win situation.

• Leaving Groww at this stage would not be a wise decision as it has a lot of potential for growth and I want ...read more

Identifying pain points for users of frequently used products.

• Conduct user research to understand their needs and challenges

• Analyze customer feedback and reviews to identify common complaints

• Observe user behavior and interactions with the product to identify areas of frustration

• Identify usability issues and areas where the product falls short in meeting user expectations

• Consider competitive analysis to understand how other products address similar pain points

Designing Jarvis would require understanding user needs, defining features, and implementing AI technologies.

• Conduct user research to understand needs and pain points

• Define key features such as voice recognition, natural language processing, and machine learning

• Implement AI technologies such as neural networks and deep learning algorithms

• Ensure data privacy and security measures are in place

• Continuously test and iterate to improve user experience

Designing an ATM machine involves considering user interface, security measures, transaction processing, and hardware components.

• User interface should be intuitive and easy to navigate for users of all ages.

• Implement security measures such as PIN entry, card authentication, and encryption to protect user data.

• Transaction processing should be fast and reliable, with options for cash withdrawals, deposits, transfers, and balance inquiries.

• Include hardware components like card r...read more

Fundamental concepts of JavaScript discussed in the interview

• Data types in JavaScript (string, number, boolean, object, array)

• Functions and scope in JavaScript

• DOM manipulation and event handling

• Asynchronous programming with callbacks, promises, and async/await

• Object-oriented programming concepts in JavaScript

Equity represents ownership in a company. Purchasing shares can make you a partial owner.

• Equity is ownership in a company, represented by shares of stock.

• When you purchase shares of a company, you become a partial owner of that company.

• As a shareholder, you have certain rights such as voting on company decisions and receiving dividends.

• The more shares you own, the greater your ownership stake in the company.

• Equity can also refer to fairness and impartiality in various context...read more

Channel data can be attributed by analyzing customer interactions across various touchpoints and assigning credit to each channel based on its contribution to the customer journey.

• Collect data from all customer touchpoints

• Analyze customer interactions to identify the channel that initiated the customer journey

• Assign credit to each channel based on its contribution to the customer journey

• Use attribution models to determine the most effective channels

• Examples: First-touch attri...read more

Merging two arrays without extra space involves swapping elements and sorting them in place.

• Iterate through both arrays and swap elements to merge them

• Sort the merged array in place using any sorting algorithm

I would improve the current product by enhancing user experience, adding new features, and optimizing performance.

• Conduct user research to identify pain points and areas for improvement

• Implement user-friendly design changes to enhance usability

• Add new features based on customer feedback and market trends

• Optimize performance by addressing any technical issues and streamlining processes

People have various needs regarding finance, including budgeting, saving, investing, and managing debt.

• Budgeting - People need help creating and sticking to a budget to manage their expenses.

• Saving - Many individuals struggle to save money for emergencies, retirement, or other financial goals.

• Investing - Some people seek guidance on how to invest their money wisely to grow their wealth.

• Managing debt - Individuals often need assistance in managing and paying off their debts to...read more

The common role of management towards corporate industry is to ensure efficient operations and profitability.

• Management sets goals and objectives for the organization

• They develop strategies to achieve those goals

• They allocate resources effectively

• They monitor performance and make necessary adjustments

• They ensure compliance with regulations and laws

• They manage risk and make decisions to mitigate it

• They foster a positive work culture and motivate employees

• Examples include hirin...read more

Minimum number of chess boards required for a tournament puzzle.

• Each game requires one board

• In each round, half of the players will be eliminated

• The number of players in the first round will determine the number of boards needed

• The formula to calculate the number of boards needed is: ceil(total number of players / 2)

I remain calm, listen actively, empathize with the customer, apologize for the inconvenience, and work towards finding a solution.

• Remain calm and composed

• Listen actively to understand the customer's concerns

• Empathize with the customer's situation

• Apologize for the inconvenience caused

• Work towards finding a solution that satisfies the customer

Swiggy Delivery Assignment System HLD

• Use a centralized system to assign delivery tasks to delivery executives based on various factors like distance, availability, and ratings

• Implement a matching algorithm to efficiently assign tasks to the nearest available executive

• Utilize real-time tracking to monitor the status of each delivery and optimize routes for faster delivery times

LLD for Swiggy Delivery Assignment System

• Use a centralized system to assign delivery tasks to delivery executives based on various factors like distance, availability, ratings, etc.

• Implement a matching algorithm to efficiently assign tasks to the most suitable delivery executive.

• Include features like real-time tracking, notifications, and reassignment in case of unavailability or delays.

• Consider scalability and performance optimizations to handle a large number of concurrent ...read more

SIP stands for Session Initiation Protocol.

• SIP is a signaling protocol used for initiating, maintaining, modifying, and terminating real-time sessions between two or more participants over an IP network.

• It is commonly used in Voice over IP (VoIP) and video conferencing applications.

• SIP allows users to make voice and video calls, send instant messages, and participate in multimedia conferences.

• It is an application-layer protocol that works in conjunction with other protocols l...read more

Use SQL pivot function to convert rows to columns

• Use the PIVOT function in SQL to convert rows into columns

• Specify the columns you want to pivot on and the values you want to display in the new columns

• Example: SELECT * FROM table_name PIVOT (MAX(value_column) FOR pivot_column IN (column1, column2, column3)) AS alias_name

A unit in a mutual fund represents ownership of a portion of the fund's assets.

• A unit in a mutual fund is similar to a share in a company.

• Investors purchase units to participate in the fund's performance.

• The value of a unit is determined by the net asset value (NAV) of the mutual fund.

• Units can be bought or sold based on the fund's pricing.

• Dividends or capital gains earned by the fund are distributed to unit holders.

The leave policy includes paid time off, sick leave, and parental leave.

• Employees are entitled to a certain number of paid time off days per year.

• Sick leave is provided for employees who are ill and unable to work.

• Parental leave is available for employees who need time off for the birth or adoption of a child.

Effective communication, understanding needs, building relationships, managing expectations

• Establish clear communication channels with stakeholders

• Understand the needs and priorities of each stakeholder

• Build strong relationships based on trust and transparency

• Manage expectations by setting realistic goals and timelines

• Regularly update stakeholders on project progress and involve them in decision-making

• Address any concerns or conflicts promptly and professionally

Designing WhatsApp involves creating a high-level design for the messaging app, focusing on features like chat, groups, calls, and media sharing.

• Implement chat functionality with real-time messaging using sockets

• Design group chat feature with ability to add/remove members

• Include end-to-end encryption for secure messaging

• Develop voice and video calling functionality

• Allow media sharing such as photos, videos, and documents

Find the Kth most occurring element in an array of strings.

• Count the frequency of each element in the array.

• Sort the elements based on their frequency.

• Return the Kth element from the sorted list.

Mutual fund is a pool of funds collected from multiple investors to invest in securities, while SIP is a systematic investment plan where investors regularly invest a fixed amount.

• Mutual fund is a professionally managed investment fund that pools money from many investors to purchase securities.

• SIP is a method of investing a fixed sum regularly in a mutual fund scheme.

• Mutual funds offer diversification, professional management, and liquidity.

• SIP helps in rupee cost averaging ...read more

Use TreeMap to automatically sort hash map keys in ascending order

• Create a TreeMap and pass the hash map to its constructor

• Iterate over the TreeMap to access the keys in ascending order

Design a ticket booking system for efficient and user-friendly experience.

• Use a database to store information about available tickets, users, and bookings

• Implement a user-friendly interface for users to search for and book tickets

• Include features like seat selection, payment processing, and booking confirmation

• Consider scalability and performance to handle a large number of users and bookings

Joins are used to combine rows from two or more tables based on a related column between them. Case when is a conditional statement used to perform different actions based on different conditions.

• Joins are used to retrieve data from multiple tables based on a related column

• Case when is used to perform different actions based on different conditions in SQL queries

• Example: SELECT * FROM table1 JOIN table2 ON table1.id = table2.id

• Example: SELECT column1, CASE WHEN condition1 THE...read more

A mutual fund is a type of investment vehicle consisting of a portfolio of stocks, bonds, or other securities, managed by a professional fund manager.

• Mutual funds pool money from multiple investors to invest in a diversified portfolio of securities

• Investors buy shares of the mutual fund, which represent a portion of the holdings in the fund

• Professionally managed by fund managers who make investment decisions on behalf of the investors

• Provide diversification, professional mana...read more

Share market is a platform where buying and selling of company stocks and securities takes place.

• Share market allows companies to raise capital by selling shares to investors

• Investors can buy and sell shares to make a profit

• Prices of shares fluctuate based on supply and demand, company performance, and economic factors

SQL joins combine data from two or more tables based on a related column between them.

• Inner join returns rows that have matching values in both tables

• Left join returns all rows from the left table and the matched rows from the right table

• Right join returns all rows from the right table and the matched rows from the left table

• Full outer join returns all rows when there is a match in either left or right table

Designing a payment gateway SDK involves creating a software development kit that allows developers to easily integrate payment processing into their Android applications.

• Define the API methods for processing payments, such as authorize, capture, refund, and void.

• Implement secure communication protocols, such as HTTPS, to ensure data privacy and security.

• Include error handling mechanisms to handle various payment processing scenarios, such as network failures or invalid payme...read more

The question is asking about the frequency of a specific character in a given string.

• Iterate through the string and count the occurrences of the specified character.

• Use a hashmap to store the count of each character.

• Handle both uppercase and lowercase characters if needed.

• Consider edge cases like empty string or null input.

A safe and reliable transportation service for children, with specially trained drivers and advanced safety features.

• Require background checks and training for drivers

• Implement strict verification process for parents and guardians

• Include real-time tracking and notifications for parents

• Offer car seats and booster seats for different age groups

• Allow parents to set restrictions on drop-off locations and ride times

Calculate the maximum amount of water that can be trapped between given bars.

• Use two pointers approach to keep track of the left and right boundaries.

• Calculate the water trapped at each bar and update the maximum water trapped.

• Move the pointers towards each other until they meet.

• Example: Given bars [0,1,0,2,1,0,1,3,2,1,2,1], the maximum water trapped is 6 units.