ChicMic Interview Questions and Answers

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

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

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

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.

• Semaphore can be binary or counting while mutex is always...read more

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