Dive into a comprehensive tutorial on solving the Recursive Staircase Problem, a common Amazon coding interview question. Learn step-by-step how to approach this problem, starting with simple cases and progressing to more complex solutions. Explore the recursive relationship, understand why naive recursive solutions can be inefficient, and discover how to optimize using dynamic programming. Follow along as the instructor demonstrates both bottom-up and space-efficient implementations. Additionally, tackle a variation of the problem, comparing incorrect and correct recursive solutions before developing a dynamic programming approach. Gain valuable insights into problem-solving techniques and coding strategies that can help you excel in technical interviews.
Amazon Coding Interview Question - Recursive Staircase Problem
Overview
Syllabus
: Problem description
: A variation of the problem
: Thinking about simple cases
: Finding a pattern
: Relabeling the steps
: Revisiting the pattern with the new labels
: The pattern we’ve found - recap.
: The recursive relationship we’ve found
: What about when N = 0?
: Writing a naive recursive solution
: Why this solution is not efficient
: How to fix it with dynamic programming bottom-up
: The bottom-up solution in code
: How to make it more efficient in terms of space
: Solution to the variation of the problem
: The recursive relationship for this problem the variation
: A naive, INCORRECT recursive solution to this problem
: A naive, CORRECT recursive solution to this problem
: A naive, correct recursive solution in code
: A dynamic programming / bottom-up approach
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Taught by
CS Dojo
