HashedIn by Deloitte Interview Questions, Process, and Tips

Variable declaration in JavaScript

• Use 'var', 'let', or 'const' to declare variables

• Variables declared with 'var' have function scope

• Variables declared with 'let' or 'const' have block scope

• Variables declared with 'const' cannot be reassigned

• Use descriptive variable names

Optimize job scheduling code

• Use priority queue to efficiently schedule jobs

• Implement dynamic programming to optimize job sequence

• Consider parallel processing to reduce overall time

• Use efficient data structures to store job information

Use Sieve of Eratosthenes algorithm to optimize prime number generation.

• Implement Sieve of Eratosthenes algorithm to eliminate non-prime numbers

• Use boolean array to mark non-prime numbers

• Start with 2 and mark all its multiples as non-prime, then move to next unmarked number

• Stop at square root of the upper limit to optimize performance

Implement a min stack using a single stack

• Create a stack to hold the elements and another stack to hold the minimum values

• When pushing an element, check if it's smaller than the current minimum and push it to the minimum stack if it is

• When popping an element, check if it's the current minimum and pop it from the minimum stack if it is

• To get the minimum value, return the top element of the minimum stack

Deadlock is a situation where two or more processes are unable to proceed because they are waiting for each other to release resources.

• Occurs in multi-process systems

• Processes hold resources and wait for others to release resources

• Can lead to system freeze or crash

• Prevented by proper resource allocation and scheduling

• Example: Two trains on a single track, each waiting for the other to pass first

Semaphore is used to control access to a resource with limited capacity while mutex is used to synchronize access to a shared resource.

• Semaphore allows multiple threads to access a resource simultaneously up to a certain limit while mutex allows only one thread to access a shared resource at a time.

• Semaphore can be used to solve the producer-consumer problem while mutex can be used to solve the critical section problem...read more

I am a technical analyst with experience in data analysis and software development.

• I have a degree in computer science and have worked in the tech industry for 5 years.

• I specialize in data analysis and have experience with programming languages such as Python and SQL.

• I have worked on projects involving data visualization and machine learning.

• I am a quick learner and enjoy staying up-to-date with the latest technologies

I tend to overthink and get stuck in analysis paralysis.

• I am aware of this weakness and actively work on setting deadlines for myself.

• I also seek input from colleagues to help me make decisions.

• For example, when working on a project, I will set a deadline for myself to make a decision and then consult with a colleague to get their perspective.

• This helps me to avoid getting stuck in overthinking and ensures that I am ma

Hashedin is a leading software development company with a focus on delivering innovative solutions.

• Expertise in cutting-edge technologies

• Proven track record of successful project delivery

• Strong emphasis on client satisfaction

• Collaborative and agile approach to development

• Dedicated team of experienced professionals

Yes, I play Poker occasionally.

• I enjoy playing Poker with friends and family.

• I have a good understanding of the rules and strategies of the game.

• Playing Poker helps me improve my analytical and decision-making skills.

No, I would not be satisfied with just pocket money and expenses.

• Salary is an important aspect of any job and cannot be replaced by just expenses and pocket money.

• Expenses and pocket money are not enough to cover other important expenses like savings, investments, and emergencies.

• It is important to have a fair and reasonable salary that reflects the value of the work being done.

• Without a salary, it would be difficult t...read more

Store newspapers of a company

• Create a database to store newspaper information

• Use a unique identifier for each newspaper

• Include fields for date, title, author, and content

• Implement a search function for easy retrieval

• Consider implementing a backup system for data security