Zhang Jian

Case Study: LeetCode Solutions Sharing Blog

By studying the best practices for solving LeetCode problems, programmers can grow rapidly.

LeetCoders

Programmers who use leetcode.com to improve their technical skills.

Project Requirements

  1. When programmers learn on other platforms, they often see the answers directly without a guided thinking process, resulting in slow growth.
  2. Programmers may solve one problem but struggle with another similar one.
  3. Programmers are unaware of the advantages, disadvantages, and applicable scenarios of different solutions.
  4. They get stuck in a vast sea of problems (LeetCode has over 4,000 questions), making progress sluggish.

Project Overview

I've found that solving LeetCode problems can quickly enhance a programmer's coding skills and broaden their perspective, while also helping them secure high-paying positions. However, without a proper plan, efficiency can be low, and skill improvement may be slow. That's why I created this website—to help programmers learn algorithms more effectively.

The Challenge

  • It is necessary to first understand multiple approaches to a problem and select the best solution to provide to users.
  • Users should be guided to complete the problem solutions on their own, following my approach, rather than being given the answers directly.
  • I need to provide problem solutions in seven programming languages.
  • The interface needs to be optimized to help users complete the learning of a problem on a single page.

The Approach & Solution

  1. Inspire programmers to think, rather than just providing answers.
  2. Extract the core concepts, enabling one solved problem to address a category of similar questions.
  3. Offer multiple approaches and provide best practices.
  4. Select only representative, frequently tested interview questions, excluding obscure ones.

The landing page

LeetCode.Blog index

The solution page for a LeetCode problem

LeetCode.Blog Solution 1

The code part for a solution

LeetCode.Blog Solution with code

The Results

Every day, hundreds of programmers rapidly learn programming algorithms on https://leetcode.blog.

Thanks to developing this website, I successfully joined the R&D department of a listed company as a Ruby development engineer.