Flyin.com Interview Questions and Answers

Find the maximum subarray sum using Kadane's algorithm

• Initialize max_sum and current_sum to 0

• Iterate through the array and update current_sum by adding the current element

• If current_sum becomes negative, reset it to 0

• Update max_sum if current_sum is greater than max_sum

The architecture of my project is based on microservices with a combination of front-end and back-end technologies.

• Utilized microservices architecture to break down the project into smaller, independent services

• Implemented front-end using React.js for dynamic user interfaces

• Developed back-end services using Node.js and Express.js for handling business logic and data processing

• Used Docker for containerization and Kubern...read more

Group anagrams from a list of strings by categorizing them based on their character composition.

• Anagrams are words that can be rearranged to form each other, e.g., 'eat' and 'tea'.

• Use a hashmap to group words by their sorted character string as the key.

• Example: Input: ['eat', 'tea', 'tan', 'ate', 'nat', 'bat'] Output: [['eat', 'tea', 'ate'], ['tan', 'nat'], ['bat']].

• Sorting each string takes O(n log n) time, and insert...read more

Kadane's Algorithm is used to find the maximum sum of a contiguous subarray within an array of integers.

• Initialize two variables: max_so_far and max_ending_here to track the maximum sum.

• Iterate through the array and update max_ending_here by adding the current element or starting a new subarray.

• Update max_so_far if max_ending_here becomes greater than max_so_far.

• Return max_so_far as the maximum subarray sum.

The number of ways to reach the rightmost cell from the topmost cell in a 2D matrix can be calculated using dynamic programming.

• Use dynamic programming to calculate the number of ways to reach each cell in the matrix.

• At each cell, the number of ways to reach it is the sum of the number of ways to reach the cell above it and the cell to the left of it.

• The value in the rightmost cell will give the total number of ways to...read more