QR Crypher Technical Lead Interview Questions and Answers

Q1. Methods of valuation
Ans. 
Valuation methods are used to determine the worth of a company or asset.
• Common valuation methods include discounted cash flow (DCF), comparable company analysis (CCA), and precedent transactions analysis.

• DCF involves estimating the future cash flows of a company and discounting them back to present value.

• CCA compares the target company to similar publicly traded companies to determine its value.

• Precedent transactions a...read more
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Q1. What is your expectation for salary
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Q2. As per industry standard.
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Q1. Reverse the given linked list
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Q2. Separate out 0's, 1's, and 2's in an array
Ans. 
Separate out 0's, 1's, and 2's in an array
• Create three variables to count the number of 0's, 1's, and 2's in the array

• Loop through the array and increment the respective variable for each occurrence

• Create a new array and add the counted number of 0's, 1's, and 2's in order
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Q1. Remove duplicates from the given array
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Remove duplicates from given array of strings
• Create a new empty array

• Loop through the original array and check if the element already exists in the new array

• If not, add it to the new array

• Return the new array
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Q2. Detect a loop in linked list
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Loop in linked list can be detected using Floyd's cycle-finding algorithm.
• Floyd's cycle-finding algorithm uses two pointers, one moving at twice the speed of the other.

• If there is a loop, the faster pointer will eventually catch up to the slower pointer.

• If there is no loop, the faster pointer will reach the end of the list.

• Time complexity of this algorithm is O(n) and space complexity is O(1).
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Q1. Why u join our company
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Q2. Show your best skill
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Q1. Connect with our program leader
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Q2. If ur salary is not good as u expect that u want to join are not
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Data structures related to dynamic program

React coding test . Design drop-down

Had to implement 2 medium questions. and give approach for 1 hard level questions. Basic questions around java were also asked.

Q1. Design system for gaming android app like ludo.
Ans. 
Design a system for a gaming android app like ludo.
• Implement game logic for ludo including dice rolling, moving pieces, and winning conditions.

• Create a user interface with a game board, player pieces, and dice.

• Incorporate multiplayer functionality for online play.

• Include features like in-game chat, leaderboards, and customizable game settings.

• Utilize a backend server to handle game synchronization and data storage.
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Q1. Introduce your self
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I am a highly motivated and detail-oriented individual with a strong background in project management and team leadership.
• Experienced in project management and team leadership

• Detail-oriented and highly motivated

• Strong communication skills

• Proficient in problem-solving and decision-making

• Bachelor's degree in Business Administration
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Q2. Have you knowledge about excel
Ans. 
Yes, I have knowledge about Excel including formulas, functions, data analysis, and creating charts.
• Proficient in using Excel for data entry, analysis, and reporting

• Familiar with various Excel functions such as VLOOKUP, SUMIF, and IFERROR

• Experienced in creating pivot tables and charts for data visualization

• Knowledgeable about advanced Excel features like macros and conditional formatting
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Q1. Tell me about some formulas of excel
Ans. 
Excel formulas are used to perform calculations and manipulate data in spreadsheets.
• SUM: Adds up a range of cells

• AVERAGE: Calculates the average of a range of cells

• VLOOKUP: Searches for a value in the first column of a table and returns a value in the same row from another column

• IF: Performs a logical test and returns one value if the test is true and another if it's false
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Q2. Have you find the location exact latlong on Google
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Yes, I have found exact latlong locations on Google.
• Yes, I have used Google Maps to find exact latlong locations.

• I have entered the address or name of the location in the search bar to get the latlong coordinates.

• I have also used the 'What's here?' feature on Google Maps to get the latlong coordinates of a specific point on the map.
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