Learn, Solve, GrowExperience the Joy of Algorithms
I guide you through LeetCode problems, helping you master algorithms and excel in coding interviews.
Offerings
Your journey through interview challenges, let alone pure algorithmic joy, with consistent growth—all in one path.
Guided LeetCode Practice
I will guide you through a roadmap built around core algorithm patterns, helping you grasp the essence first and practice more effectively.
I also select problems purely for enjoyment, letting you experience algorithms as a puzzle and enjoy those "Aha!" moments.
Real Coding Interview Tactics
I will teach you how to excel in a 45-minute real coding interview, sharing tips to manage time, communicate clearly, and debug efficiently.
I'll also guide you in finding a foothold when you're asked a tough question and get stuck.
Consistency & Growth Coaching
Consistency is key in your algorithm solving practice.
I'll support your motivation, pace, and practice rhythm to help you keep growing.
Bring your determination and love for algorithms—I'll take care of the rest.
Contents
A journey designed to ignite your curiosity, sharpen your skills, and fuel your growth at every step.
LeetCode algorithm patterns, distilled
After solving and revisiting over 1,300 LeetCode problems, I've discovered that every topic — from Binary Search to Dynamic Programming — rests on a few core patterns. By practicing multiple problems of the same pattern in sequence, you can internalize each trick incredibly efficiently.
Let me guide you through these distilled tricks. Once you internalize them, you'll start seeing every problem as fitting one of them.
The art of 45-minute coding interviews
A coding interview is not just a test — it's a performance. Every move you make should attract and engage your interviewer.
I'll help you master the rhythm: time management, clear and concise explanations, debugging effectively under pressure, and uncovering a solution path when facing a tough question.
Treat your next interview like a rock show — and learn to shine on that stage.
Your motivating pacer
What I want to teach you isn't just interview tricks.
My job is to help you stay consistent, focused, and confident — even when progress feels slow or pressure builds.
I'll make sure you can concentrate fully, feel the momentum of every problem you solve, and keep your motivation alive throughout the journey.
That's what I'm here for.
Curated Aha! moments
Algorithms are not merely tools for interviews — they're a source of joy.
Here, you'll find a handpicked list of problems that spark curiosity for their own sake — puzzles so elegant that you can't help but whisper, "Ah, so that's how it works."
Explore these problems not for career advancement, but for the sheer pleasure of discovery.
I'll let you fall into the beautiful depths of algorithmic thinking.
An ever-growing coach
A coach should never stop learning, and I am no exception. I love algorithms and constantly challenge myself, seeking new and tougher problems that push the boundaries.
Though I have achieved milestones, my journey is far from over, and I embrace the struggles that come with growth. I share this process openly — not as a finished expert, but as a fellow learner walking beside you.
Together, we evolve.
Meet Daiki
Hi, I'm Daiki — your coach based in Tokyo, Japan.
I'm a passionate algorithm enthusiast and a LeetCode Guardian, ranked within the top 1.2% of participants worldwide.
My major in university was geophysics, not computer science — so I had to teach myself everything from scratch, through countless late nights of trial, error, and discovery. That process taught me something invaluable: growth isn't about talent; it's about consistency, curiosity, passion, and the courage to keep going when things get tough — and above all, a deep love and dedication for the craft itself.
Now, I aim to share that mindset — embracing your journey of curiosity, exploration, and growth towards the achievement of your goal.
Let's grow together, one problem at a time.
