What do you do if you need to solve interview problems efficiently?

1 Understand Problem

Before diving into solving a problem, it's crucial to fully understand what is being asked. Take a moment to read through the problem statement carefully. Clarify any ambiguities by asking questions. This will ensure that you comprehend the problem's scope and constraints. By understanding the problem, you can formulate a plan of attack that is both strategic and efficient. Remember, solving the right problem is just as important as solving the problem right.

3 Write Pseudocode

Before jumping into coding, writing pseudocode can be extremely helpful. Pseudocode is a plain language description of the steps in an algorithm. It allows you to structure your thoughts and the logic of your solution without getting bogged down by the syntax of a programming language. Think of it as drafting an outline for an essay; it helps organize your thoughts and ensures that you cover all necessary points before writing the final draft.

4 Code Efficiently

Now, translate your pseudocode into actual code. Write clean, readable code and be mindful of the time constraints. Avoid getting stuck on minor details that can be refined later. If you're writing code on a whiteboard or paper, remember to verbalize your thought process so the interviewer understands your approach. Writing efficient code under interview conditions is a balancing act between speed and accuracy.

5 Test Thoroughly

Testing your solution is as important as coming up with one. Run through a few test cases to check if your code works as expected. Look for edge cases and consider different input scenarios. This step is akin to proofreading your work; it's about catching errors and making sure that your solution is robust and handles a variety of cases gracefully. Testing thoroughly demonstrates attention to detail and a commitment to quality.

6 Iterate & Improve

Finally, review your solution and look for areas of improvement. Can you make your code more efficient or readable? Are there alternative solutions that could be more effective? Reflect on your process and learn from any mistakes. This iterative approach is about fine-tuning your solution and striving for excellence. Continuous improvement is a key aspect of problem-solving and can leave a strong impression on your interviewer.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?