Common Programming Interview Questions

What are some common programming interview questions I should prepare for?

Some common programming interview questions include:

1. Explain the difference between a stack and a queue.
2. How do you reverse a linked list?
3. What is a hash table and how does it work?

Can you explain how to reverse a linked list?

Sure! To reverse a linked list, you can use an iterative approach:

1. Initialize three pointers: previous (null), current (head), and next (null).
2. Iterate through the list, updating the next pointer to point to the previous node.
3. Move the previous and current pointers one step forward until you reach the end.

What is a hash table?

A hash table is a data structure that implements an associative array, a structure that can map keys to values. It uses a hash function to compute an index into an array of buckets or slots, from which the desired value can be found.

What are some tips for coding interviews?

Some tips for coding interviews include:

1. Practice coding problems regularly.
2. Understand data structures and algorithms.
3. Communicate your thought process clearly during the interview.