- Jun 1, 2025 Notes on Problem Design→
Short English draft for the Chinese post "出题症发作时，我会先抓住那个奇怪的核". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Problem Design · Problem Design · Thoughts - Sep 15, 2024 Why Learn Polynomials→
Short English draft for the Chinese post "为什么竞赛里要学多项式". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Polynomials · fft · ntt - Sep 13, 2024 Mobius Inversion Notes→
Short English draft for the Chinese post "从卷积到反演：莫比乌斯反演在做什么". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Number Theory · Mobius Inversion · Dirichlet Convolution - Sep 13, 2024 Generating Functions Primer→
Short English draft for the Chinese post "我对生成函数的入门理解：先把系数当答案". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Generating Functions · Combinatorics · dp - Aug 29, 2024 Competitive Game Theory Notes→
Short English draft for the Chinese post "竞赛博弈论的判断框架". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Game Theory · nim · SG Function - Apr 4, 2024 Search, DFS, BFS, and DP→
Short English draft for the Chinese post "搜索不是暴力：看懂 DFS、BFS 与 DP 的边界". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Search · dfs · bfs - Oct 27, 2023 Linear Sieve Notes→
Short English draft for the Chinese post "筛法不只是筛素数：线性筛的统一视角". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Number Theory · Sieve Methods · Linear Sieve - Oct 23, 2023 Number Theory Basics→
Short English draft for the Chinese post "从整除到同余：数论入门该抓什么". Includes a minimal summary so bilingual routing can be tested.
Lang English Algorithms · Number Theory · Basics · Euclidean Algorithm