中文知识库
从约束识别、模板选择到证明义务与错误模式，适合系统学习和面试复习。
Pattern-first interview review
Algorithm
Pattern Atlas
把算法题压缩成可迁移、可复习的模板系统。A bilingual knowledge base for recognizing constraints, selecting patterns, proving correctness, and reviewing efficiently.
69reusable solution templates / 解法模板
12 × 2interactive graph views / 双语图谱
MD + HTMLsource notes and visual editions / 双格式
English Atlas
A compact system for transferring reusable algorithmic ideas across problem families.
12 ways to see the same corpus
Selection, prerequisites, complexity, modeling transformations, proof obligations, error invariants, and more.
Review by pattern, not by memorized answer
Each template records recognition signals, invariants, complexity, edge cases, implementation traps, and related approaches.