Google Interview Question #2

📰 Medium · JavaScript

Learn to solve a Google interview question about finding the minimum initial energy required to cross a river with varying wind speeds

intermediate Published 15 Aug 2026
Action Steps
  1. Read the problem statement carefully to understand the constraints and requirements
  2. Define the variables and parameters given in the problem, such as the maximum initial energy k and the array A of wind speeds
  3. Build a dynamic programming approach to calculate the minimum initial energy required to cross the river on each day
  4. Apply the dynamic programming algorithm to the given array A and find the minimum initial energy required
  5. Test and validate the solution with sample inputs and edge cases
Who Needs to Know This

Software engineers and developers can benefit from this problem to improve their coding skills and algorithmic thinking

Key Insight

💡 Dynamic programming can be used to solve this problem efficiently by breaking it down into smaller sub-problems and storing the solutions to sub-problems to avoid redundant computation

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Key Takeaways

Learn to solve a Google interview question about finding the minimum initial energy required to cross a river with varying wind speeds

Full Article

You are given maximum initial energy k (k<1000) and an array A of length n denoting wind speed on n days. He is stuck on a boat, and each… Continue reading on Medium »
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