LeetCode Essential Problem Solving for Passing Coding Tests

🧠 Coding tests - why do you always get stuck on similar problems?

Even though you're consistently solving LeetCode problems,
don't you feel lost about where to start when you see a new problem?

• Even when you look at the solution code, it just ends with "Oh, I see"

• When a slightly modified problem appears, you find yourself struggling from scratch again

• The solution is too slow to meet the time limit

This course was created for those experiencing these problems.

🎯 The Core of This Course: Not "The Answer" but "The Thinking Process"

This course doesn't simply show you the answer code. This course teaches you "how to think," not just
"how to solve" LeetCode problems.

For each problem, we repeat the following flow.

1. The Most Intuitive Approach (Bruteforce)

2. Time / Space Complexity Analysis of the solution của lời giải đó

3. Clearly understand why this solution is inefficient

4. A better approach utilizing data structures or algorithms bằng cách sử dụng cấu trúc dữ liệu hoặc thuật toán

5. Derive the final optimized solution by comparing multiple approaches

For a single problem
👉 We cover at least 2, and up to 5-6 different approaches
so you can learn with understanding "why this solution is good."

💡 What You'll Gain from This Course

Through this course, you can expect the following changes.

• As soon as you see a problem
  → the ability to sense which algorithm / data structure to use

• The ability to establish realistic solution strategies
  → considering time constraints

• LeetCode problems
  → A baseline to continue solving on your own

The goal is not simply to become someone who "solves many problems" but to grow into someone who "knows how to solve problems".

👤 Recommended for

• Developers who are preparing for coding tests for the first time or preparing again

• I understand LeetCode problems but have no idea how to approach solving them

• Junior to mid-level developers aiming for overseas employment / Big Tech interviews hướng tới mục tiêu xin việc ở nước ngoài / phỏng vấn Big Tech

• Those who want to develop problem-solving thinking skills rather than simple memorization

  
  

⚙️ Notes Before Taking the Course