I have a document at [PATH] containing my solutions to various [TOPIC] problems.

  Create a comprehensive cheatsheet with these requirements:

  **Format:**
  - Use descriptive tables and bullet points only - NO code blocks
  - Table text should be self-explanatory (I should understand it months later without context)
  - Link to LeetCode problems like [#123](https://leetcode.com/problems/problem-name/) instead of just #123
  - No separator lines like --- between sections
  - Start headings from ## level (no # level headings)
  - Keep it concise but don't sacrifice clarity

  **Sections to include:**
  1. Problem Recognition - keywords and signals that indicate this pattern
  2. Core Concepts & Formulas - essential formulas and complexity patterns
  3. Main Patterns - table showing pattern types, when to use, approach, and example problems
  4. Technique Combos - table showing what to track, which technique to use, and examples
  5. Common Mistakes - off-by-one errors, timing issues, edge cases

  **Important:**
  - Merge any redundant sections - if two sections cover similar ground, combine them
  - Tables should have descriptive column headers and detailed entries
  - Focus on actionable patterns from my actual solutions
  - Make it interview-ready and scannable

  [PATH TO DOCUMENT]