ivy Senior Software Engineer Interview Questions, Process, and Tips

Q1. Solid principals
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Q2. Difference between pure and impure pipes
Ans. 
Pure pipes do not have any side effects and always return the same output for the same input, while impure pipes can have side effects and may not return the same output for the same input.
• Pure pipes are stateless and deterministic.

• Impure pipes can have side effects like modifying global variables or making network requests.

• Examples of pure pipes include filters in Angular, while examples of impure pipes include async
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2 questions in hackerrank test - 90 minutes.
1. Flipping switches: a two dimensional array and an int value given as inputs. initially all switches are tuned off(marked zero). in each array we get operation which will contain the indexes of the array on which on/off of switches operation is performed. it indicated that those indexes bulbs are tuned on if already turned off and vice versa. after all operations find the count of lights that were switched on.
2. Game of colors: input is a string contains w and b characters: wwwbbbbwww. two players play the game. w starts first. then next player b. one player can play only if its respected color w or b has same color previous and after. i.e., in the input given above, w can start play his tune as we have w at index 1 has its previous index and next index characters are w. then he can remove that color. ie.e at index 1 then player play and removes colour b similarly. a player can win if other player cannot remove any color(no consecutive same color). return the name of the player who wins from the game

Q1. Tell me about yourself
Ans. 
I am a seasoned Senior Software Engineer with over 10 years of experience in developing and implementing software solutions.
• Over 10 years of experience in software development

• Proficient in multiple programming languages such as Java, Python, and C++

• Strong problem-solving skills and ability to work in a team environment

• Experience in leading and mentoring junior developers

• Familiar with Agile development methodologies
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Q1. Technical interview and analytical questions
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Q1. Remove duplicates from list
Ans. 
Remove duplicates from list of strings
• Create a Set to store unique strings

• Iterate through the array and add each string to the Set

• Convert the Set back to an array to get the list of unique strings
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Q2. Find Second largest in a table
Ans. 
Iterate through the table to find the second largest value.
• Iterate through the table and keep track of the largest and second largest values.

• Compare each value with the current largest and second largest values.

• Update the second largest value if a new value is found that is greater than the current second largest value.
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Q3. Sort in descending order
Ans. 
Sort array of strings in descending order
• Use a sorting algorithm like quicksort or mergesort

• Specify the sorting order as descending

• Ensure the sorting algorithm is stable to maintain order of equal elements
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