How to start solving LeetCode problems?

Approaching LeetCode problems can be challenging, but with the right strategy, you can improve your problem-solving skills and succeed. Here are some steps that can help you approach LeetCode problems effectively:

  1. Start with the easy problems: If you are new to LeetCode, start by solving the easy problems to get a feel for the platform and build your confidence. Once you are comfortable, move on to more challenging problems.
  2. Understand the problem statement: Take the time to read and understand the problem statement carefully. Make sure you understand the input and output requirements, constraints, and any special edge cases.
  3. Plan your approach: Before you start coding, take a moment to plan your approach. Think about different algorithms or data structures that could solve the problem and decide which one to use.
  4. Write clean and modular code: Writing clean and modular code can make your solution easier to understand, maintain, and debug. Avoid repetitive code and consider breaking down the problem into smaller, more manageable functions.
  5. Test your code: Always test your code with different inputs and edge cases to make sure it works as expected.
  6. Analyze your solution: Once you have a working solution, analyze its time and space complexity to see if there is room for optimization. Refactor your code if necessary.
  7. Learn from your mistakes: Don’t be discouraged if you can’t solve a problem on your first attempt. Use each problem as a learning opportunity and analyze your mistakes to avoid them in the future.

Remember, LeetCode is a platform for learning, and the more problems you solve, the more you will improve your problem-solving skills.