https://jasper-aa64.github.io/tags/graph/Recent content in Graph on JasperHugoen-usSun, 26 Apr 2026 00:00:00 +0000https://jasper-aa64.github.io/posts/combinatorics-order-theory/Sun, 26 Apr 2026 00:00:00 +0000https://jasper-aa64.github.io/posts/combinatorics-order-theory/Chromatic polynomial, chordal/interval graphs, PEO product formula, order polynomials (chain/antichain/tree/DAG/divisor lattice), MacMahon formula, Dilworth, Mirsky, Hall’s marriage theorem, Erdős–Szekeres, missile interception.https://jasper-aa64.github.io/posts/combinatorics-1-counting-conclusions/Mon, 20 Apr 2026 00:00:00 +0000https://jasper-aa64.github.io/posts/combinatorics-1-counting-conclusions/常见计数结论、Lucas 定理、不定方程解计数、平面分拆、DAG 路径计数、多项式平移、XOR 均匀性与若干竞赛常用结论。