- Mar 6, 2026 Codeforces Solutions 3→
Short English draft for the Chinese post "Codeforces 题解整理 3：数论、博弈、组合与 EDU". Includes a short English preview for bilingual page switching.
Lang English Competitive Programming · Solutions · codeforces · Number Theory - 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