CategoriesCTF2Math23Misc1OI47solution30template8project3sympy1Tagstree-diameter1tree-centroid1tree4tools2theme2surreal-numbers1sort1sieve2shortest-path1set-theory1sequence8random1project-euler1probability2prime4prefix-sum4powerful-number1poly1number-theory6meet-in-middle1math(oi)10linear-algebra1io2interactive2integrate2hash2hack1greedy3graph8geometry3general-term5games3fixed-point4finite-difference2fenwick1euler-totient1equation2dsu-on-tree1distance2dfs2data-structure5contest1constructive4construction1communication1combinatorics2brute-force1blocks1bitset2bits4binary-search1binary-lifting1asymptotic1Theorem6OS1OGF2Mo-algo2MST2Dynamic-Programming8Convolution2Calculus7Bugs1BIOS1Axiom1Ad-hoc5ASM1Tag: sequence2025-0909-02Gosper-Algorithm2025-0707-14无限幂塔方程2025-0606-20一类一阶递推数列的通项公式求法06-20F(a, S) = 0 类数列通项06-19不动点法求解数列通项2025-0505-31一类分式递推数列的通项公式求法05-26有限微积分2025-0404-30等差数列的 k 阶前缀和∧