10+ MindTickle Interview Questions and Answers

This question asks to find the position of a target integer in a row-wise and column-wise sorted matrix.

• Iterate through each row and column of the matrix

• Compare the target integer with the current element

• If the target integer is found, return the position as {i, j}

• If the target integer is not found, return {-1, -1}

The question asks to find the total amount of rainwater that can be trapped in the given elevation map.

• Iterate through the array and find the maximum height on the left and right of each bar.

• Calculate the amount of water that can be trapped at each bar by taking the minimum of the maximum heights on the left and right.

• Sum up the trapped water for all bars and return the total amount.

Find the maximum total booked minutes possible in a conference room for all meetings with a 15-minute break between meetings.

• Iterate through the list of meeting durations and calculate the maximum total booked minutes considering the 15-minute break constraint.

• Keep track of the total booked minutes and skip consecutive meetings that violate the break constraint.

• Return the maximum total booked minutes for each test case.

Find the smallest subarray with exactly K distinct elements in an array.

• Use a sliding window approach to keep track of the subarray with K distinct elements.

• Maintain a hashmap to count the frequency of each element in the window.

• Update the window size based on the number of distinct elements.

• Return the smallest subarray with K distinct elements.

Determine if a given undirected graph is Bipartite or not.

• Check if the graph can be divided into two sets such that each edge connects nodes from different sets.

• Use BFS or DFS to color nodes alternatively and check for any conflicts.

• If a conflict is found, the graph is not Bipartite.

• If no conflict is found, the graph is Bipartite.

Calculate the total volume of water that can be trapped in a 2-D elevation map after rainfall.

• Iterate through each cell in the matrix and calculate the trapped water based on the surrounding heights.

• Use a stack or queue to keep track of the cells to be processed.

• Consider edge cases such as when the matrix is empty or has only one row or column.

Implement a function to determine any topological sorting of a directed acyclic graph (DAG).

• Create a graph using the given input of nodes and edges

• Perform a topological sort on the graph to find a valid ordering of vertices

• Output the sorted vertices as a single line for each test case

Implement polyfill of promise.all and debounce function with example

• Create a polyfill for Promise.all by using Promise constructor and Promise.resolve

• Implement debounce function by using setTimeout and clearTimeout

• Example: const debouncedFunction = debounce(() => { console.log('debounced function called') }, 300)

Implement a basic data grid component using machine coding

• Start by defining the structure of the data grid component

• Implement functions for adding, updating, and deleting data in the grid

• Include features like sorting, filtering, and pagination

• Consider performance optimizations for handling large datasets

• Test the data grid component with sample data to ensure functionality

To find repeating characters from a string in a single loop.

• Create an empty array to store repeating characters

• Loop through each character of the string

• If the character is already in the array, add it to the array

• Return the array of repeating characters

Yes, an online Chess Board Game can be designed with features like multiplayer mode, AI opponent, chat functionality, and leaderboard.

• Implement a chess board with 64 squares and pieces (king, queen, rook, etc.)

• Include multiplayer mode for playing against friends or random opponents

• Develop an AI opponent with varying difficulty levels

• Incorporate chat functionality for communication between players

• Include a leaderboard to track player rankings

An online transport rental service allows users to book vehicles for short-term use.

• Users can search for available vehicles based on location, date, and time.

• The service should include options for different types of vehicles such as cars, bikes, and scooters.

• Users should be able to make reservations, view rental details, and make payments online.

• The platform should have a rating system for both users and vehicles to ensure quality service.

• Integration with mapping services lik...read more

Iterated on a product to improve user experience

• Identified pain points through user feedback

• Conducted user research to understand user needs

• Implemented changes based on feedback and research

• Tested new features with a subset of users

• Analyzed data and user feedback to further refine the product

The Alien Dictionary Problem is a question that involves sorting words based on a given alien language's alphabetical order.

• The problem can be solved using topological sorting.

• Create a graph where each character is a node and each word is an edge.

• Perform a topological sort on the graph to get the correct order of characters.

• If there is a cycle in the graph, it means the alien language is invalid.

Frontend code quality is crucial for performance, maintainability, and scalability of web applications.

• Consistent coding style and conventions improve readability and maintainability.

• Modular and reusable code components enhance scalability and reduce duplication.

• Regular code reviews and testing ensure high quality and bug-free code.

• Optimizing performance by minimizing file sizes, reducing HTTP requests, and using efficient algorithms.

• Implementing accessibility features to ens...read more

Design a card game BlackJack

• Create a deck of 52 cards

• Assign values to cards (number cards are worth their face value, face cards are worth 10, Ace can be 1 or 11)

• Deal 2 cards to each player and dealer, one of the dealer's cards is hidden

• Players can choose to 'hit' (draw another card) or 'stand' (keep current hand)

• Dealer must hit until their hand value is 17 or higher

• Player wins if their hand value is closer to 21 than the dealer's without exceeding 21

Mindtickle is a B2B SAAS platform designed to help companies train and develop their sales teams through interactive learning modules.

• Focus on creating engaging and interactive training modules for sales teams

• Include features for tracking progress and performance analytics

• Integrate with CRM systems for seamless data flow

• Offer customization options for different industries and sales processes