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-hoc5ASM1Category: solution2025-1111-03CF2162G (Div. 3) Beautiful Tree2025-1010-18数列分块入门 910-08Jabberwocky I (Ynoi Easy Round 2016)2025-0909-14P-smooth number (ABC 300 G)09-14Subset Product Problem (AGC 205 E)2025-0808-29Codeforces Round 1046 (Div 2)08-26棋盘上的守卫 (bzoj 4883)08-25TEL-Teleportation (POI 2010)08-24sqrt(n²+n+X) (ABC 420)08-23Trokuti (COTS 2023)08-22神秘构造题 108-20合金 (JSOI 2007)08-20排序问题 (JXOI 2018)08-19平方数 (SNOI 2024)08-18Bracket Pairing08-18Subarray Sum Divisibility (ABC 419)08-18foreverlasting and fried-chicken (HDU 2023(2))08-13Gastronomic Event (SWERC 2021)08-13铁路 2 (KTSC 2024 R1)08-12Mr. Liang play Card Game (HDU 2023(1))08-09Binary Operation (ABC 418 G)08-09Increasing Numbers (AGC 011 E)08-09Luogu 981608-09Broken Device (JOISC 2017)08-07(PA2016 R1 A) Gra w karty08-04Luogu 120032025-0505-21十二重计数法05-20CF2109C (Div. 2) Hacking Numbers05-19PE484 Arithmetic Derivative05-19CF2101B (Div. 1) Quartet Swapping∧