blog | jeffswt: the ac moments

October, 2019

高级语言程序设计I 课堂材料 8 Oct

CS31002 高级语言程序设计I

July, 2018

粉碎你的使用说明书 31 Jul

Reverse Engineering JavaScript

June, 2017

退役之前的一些黑照 7 Jun

Photos Memoriam

May, 2017

Windows 10: Darkened 21 May

Tutorials Appearance Windows
CTSC2017 & APIO2017 游记 15 May

CTSC2017 APIO2017

April, 2017

bzoj4260: Codechef REBXOR 21 Apr

Problems BZOJ Trie Retroactive Data Structures
bzoj3309: DZY Loves Math 21 Apr

Problems BZOJ Number Theory Mobius Inversion
bzoj1823: [JSOI2010]满汉全席 20 Apr

Problems BZOJ JSOI2010 Strongly Connected Components
bzoj3563: DZY Loves Chinese 20 Apr

Problems BZOJ Fiddling Randomization Algorithm
bzoj3569: DZY Loves Chinese II 20 Apr

Problems BZOJ Fiddling Randomization Algorithm
bzoj1822: [JSOI2010]Frozen Nova 冷冻波 20 Apr

Problems BZOJ JSOI2010 Computational Geometry Network Flow
bzoj1824: [JSOI2010]下棋问题 20 Apr

Problems BZOJ JSOI2010 Queue Monotonicity
bzoj1826: [JSOI2010]缓存交换 19 Apr

Problems BZOJ JSOI2010 STL
bzoj1821: [JSOI2010]Group 部落划分 Group 19 Apr

Problems BZOJ JSOI2010 Binary Search Disjoint Set
bzoj1820: [JSOI2010]Express Service 快递服务 19 Apr

Problems BZOJ JSOI2010 Dynamic Programming
bzoj1065: [NOI2008]奥运物流 19 Apr

Problems BZOJ NOI2008 Dynamic Programming Tree DP
bzoj1819: [JSOI2010]Word Query电子字典 18 Apr

Problems BZOJ JSOI2010 Trie
bzoj1818: [Cqoi2010]内部白点 18 Apr

Problems BZOJ CQOI2010 Fenwick Tree
bzoj1816: [Cqoi2010]扑克牌 18 Apr

Problems BZOJ CQOI2010 Binary Search
bzoj1497: [NOI2006]最大获利 13 Apr

Problems BZOJ NOI2006 Network Flow Minimum Cut
bzoj3232: 圈地游戏 13 Apr

Problems BZOJ Binary Search Minimum Cut Network Flow
bzoj2657: [Zjoi2012]旅游(journey) 13 Apr

Problems BZOJ ZJOI2012 Graph Theory
bzoj2656: [Zjoi2012]数列(sequence) 13 Apr

Problems BZOJ ZJOI2012 Depth First Search High Precision Python Fiddling
bzoj4753: [Jsoi2016]最佳团体 12 Apr

Problems BZOJ JSOI2016 Dynamic Programming Binary Search 0-1 Fractional Programming
bzoj1491: [NOI2007]社交网络 11 Apr

Problems BZOJ NOI2007 Shortest Path
bzoj1408: [Noi2002]Robot 11 Apr

Problems BZOJ NOI2002 Number Theory Fast Exponentiation
bzoj1063: [Noi2008]道路设计 11 Apr

Problems BZOJ NOI2008 Dynamic Programming Tree DP
bzoj1177: [Apio2009]Oil 11 Apr

Problems BZOJ APIO2009 Fiddling Dynamic Programming
bzoj2127: happiness 11 Apr

Problems BZOJ Network Flow Minimum Cut
bzoj1150: [CTSC2007]数据备份Backup 10 Apr

Problems BZOJ CTSC2007 Brute Force Greedy
bzoj1149: [CTSC2007]风玲Mobiles 10 Apr

Problems BZOJ CTSC2007 Depth First Search
bzoj1143: [CTSC2008]祭祀river 10 Apr

Problems BZOJ CTSC2008 Bipartite Graph
bzoj1061: [Noi2008]志愿者招募 10 Apr

Problems BZOJ NOI2008 Maximum Flow Minimum Cost
bzoj1042: [HAOI2008]硬币购物 10 Apr

Problems BZOJ HAOI2008 Inclusion-Exclusion Principle
bzoj1027: [JSOI2007]合金 10 Apr

Problems BZOJ JSOI2007 Graph Theory Convex Hull Floyd
bzoj2326: [HNOI2011]数学作业 7 Apr

Problems BZOJ HNOI2011 Dynamic Programming Matrix Multiplication Fast Exponentiation
bzoj2162: 男生女生 5 Apr

Problems BZOJ Network Flow Minimum Cut Combinatorics Inclusion-Exclusion Principle
bzoj1030: [JSOI2007]文本生成器 5 Apr

Problems BZOJ JSOI2007 Aho-Corasick Automaton Dynamic Programming
bzoj1209: [HNOI2004]最佳包裹 5 Apr

Problems BZOJ HNOI2004 Computational Geometry Convex Hull Incremental Convex Hull Algorithm
bzoj1211: [HNOI2004]树的计数 5 Apr

Problems BZOJ HNOI2004 Prüfer Sequence Fast Exponentiation
bzoj1212: [HNOI2004]L语言 5 Apr

Problems BZOJ HNOI2004 Trie

March, 2017

bzoj4321: queue2 31 Mar

Problems BZOJ Dynamic Programming
bzoj2243: [SDOI2011]染色 31 Mar

Problems BZOJ SDOI2011 Heavy Light Decomposition Segment Tree
bzoj1500: [NOI2005]维修数列 31 Mar

Problems BZOJ NOI2005 Splay Tree
bzoj3797: Ural 1745 Yet Another Answer 29 Mar

Problems BZOJ Ural Dynamic Programming Greedy
tsinsen1382/bzoj2962: 序列操作 27 Mar

Problems Tsinsen BZOJ Segment Tree
bzoj3505: [Cqoi2014]数三角形 23 Mar

Problems BZOJ CQOI2014 Combinatorics
bzoj2956: 模积和 22 Mar

Problems BZOJ Multiplicative Inverse Extended Euclidean Algorithm
bzoj3676: [Apio2014]回文串 22 Mar

Problems BZOJ APIO2014 Suffix Automaton Manacher Palindrome Automaton
bzoj1202: [HNOI2005]狡猾的商人 22 Mar

Problems HNOI2005 Disjoint Set
bzoj1607: [Usaco2008 Dec]Patting Heads 轻拍牛头 21 Mar

Problems BZOJ USACO2008 Number Theory Sieve Method
bzoj3142: [Hnoi2013]数列 21 Mar

Problems BZOJ HNOI2013 Combinatorics Fast Exponentiation
bzoj3144: [Hnoi2013]切糕 21 Mar

Problems BZOJ HNOI2013 Minimum Cut
spoj2916: GSS5 - Can you answer these queries V 17 Mar

Problems SPOJ GSS Segment Tree
spoj2713: GSS4 - Can you answer these queries IV 16 Mar

Problems SPOJ GSS Segment Tree Fiddling
spoj1716: GSS3 - Can you answer these queries III 16 Mar

Problems SPOJ GSS Segment Tree
spoj1043: GSS1 - Can you answer these queries I 16 Mar

Problems SPOJ GSS Segment Tree
bzoj2229: [Zjoi2011]最小割 15 Mar

Problems BZOJ ZJOI2011 Fiddling Graph Theory Minimum Cut Network Flow
bzoj2281: [Sdoi2011]黑白棋 15 Mar

Problems SDOI2011 Game Theory Combinatorics Dynamic Programming
bzoj2208: [Jsoi2010]连通数 15 Mar

Problems BZOJ JSOI2010 Strongly Connected Components
bzoj3140: [Hnoi2013]消毒 14 Mar

Problems BZOJ Depth First Search Bipartite Graph
bzoj2241: [SDOI2011]打地鼠 14 Mar

Problems BZOJ SDOI2011 Brute Force Search Fiddling
bzoj3131: [Sdoi2013]淘金 14 Mar

Problems BZOJ SDOI2013 Dynamic Programming Digits DP Heap
bzoj3155: Preprefix sum 14 Mar

Problems BZOJ Fenwick Tree Segment Tree
bzoj3139: [Hnoi2013]比赛 13 Mar

Problems BZOJ HNOI2013 Brute Force Search
bzoj4002: [JLOI2015]有意义的字符串 13 Mar

Problems BZOJ JLOI Algebra Matrix Multiplication Fast Exponentiation
bzoj2186: [Sdoi2008]沙拉公主的困惑 12 Mar

Problems BZOJ SDOI2008 Number Theory Euler Function
bzoj2818: Gcd 11 Mar

Problems BZOJ Number Theory Euler Function
bzoj2190: [SDOI2008]仪仗队 10 Mar

Problems BZOJ SDOI2008 Number Theory Linear Sieve
bzoj2146: Construct 10 Mar

Problems BZOJ Graph Theory Convex Hull
bzoj2144: 跳跳棋 10 Mar

Problems BZOJ Graph Theory Least Common Ancestor
bzoj2142: 礼物 10 Mar

Problems BZOJ Number Theory Chinese Remainder Theorem Extended Euclidean Algorithm
bzoj2140: 稳定婚姻 9 Mar

Problems BZOJ Strongly Connected Components Tarjan
bzoj2143: 飞飞侠 8 Mar

Problems BZOJ Shortest Path
bzoj2141: 排队 8 Mar

Problems BZOJ Partitioning
bzoj4198: [Noi2015]荷马史诗 7 Mar

Problems BZOJ NOI2015 Huffman Tree Greedy
bzoj4196: [Noi2015]软件包管理器 7 Mar

Problems BZOJ NOI2015 Heavy Light Decomposition Segment Tree
bzoj4197: [Noi2015]寿司晚宴 3 Mar

Problems BZOJ NOI2015 Dynamic Programming Compressed DP
bzoj2135: 刷题计划 2 Mar

Problems BZOJ Binary Search
bzoj4195: [Noi2015]程序自动分析 1 Mar

Problems BZOJ NOI2015 Disjoint Set

February, 2017

bzoj2145: 悄悄话 28 Feb

Problems BZOJ Cryptography Fiddling
bzoj2131: 免费的馅饼 23 Feb

Problems BZOJ Dynamic Programming Optimized DP Fenwick Tree
bzoj2124: 等差子序列 23 Feb

Problems Fenwick Tree Hashing
bzoj2134: 单选错位 22 Feb

Problems BZOJ Probability Theory
bzoj4491: 我也不知道题目名字是什么 21 Feb

Problems BZOJ Segment Tree Splay Tree
bzoj4017: 小Q的无敌异或 21 Feb

Problems BZOJ Number Theory Fenwick Tree
bzoj4300: 绝世好题 21 Feb

Problems BZOJ Dynamic Programming
bzoj2121: 字符串游戏 19 Feb

Problems BZOJ Dynamic Programming State Truncation DP
bzoj2809: [Apio2012]dispatching 19 Feb

Problems BZOJ APIO2012 Mergable Heap Leftist Tree Depth First Search
bzoj2132: 圈地计划 19 Feb

Problems BZOJ Minimum Cut Network Flow
bzoj2120: 数颜色 18 Feb

Problems BZOJ Partitioning Mo's Algorithm
bzoj2118: 墨墨的等式 17 Feb

Problems BZOJ Number Theory Graph Theory Shortest Path
bzoj2877: [Noi2012]魔幻棋盘 17 Feb

Problems BZOJ NOI2012 Number Theory Segment Tree Quadratic Segment Tree
bzoj4247: 挂饰 9 Feb

Problems BZOJ Dynamic Programming
bzoj4244: 邮戳拉力赛 9 Feb

Problems BZOJ Dynamic Programming
bzoj4243: 交朋友 9 Feb

Problems BZOJ Graph Theory Disjoint Set
bzoj4603: [Sdoi2016]平凡的骰子 9 Feb

Problems BZOJ SDOI2016 Computational Geometry
bzoj4240: 有趣的家庭菜园 9 Feb

Problems BZOJ Fenwick Tree Segment Tree
bzoj4238: 电压 9 Feb

Problems BZOJ Depth First Search Graph Theory
bzoj4237: 稻草人 8 Feb

Problems BZOJ Dynamic Programming Optimized DP CDQ Divide and Conquer
bzoj1492: [NOI2007]货币兑换Cash 7 Feb

Problems BZOJ NOI2007 Dynamic Programming Optimized DP CDQ Divide and Conquer
Let There be Cake 7 Feb

Game Portal The Cake is a Lie
bzoj2039: [2009国家集训队]employ人员雇佣 7 Feb

Problems BZOJ WC2009 Minimum Cut Network Flow Dinic
bzoj2038: [2009国家集训队]小Z的袜子(hose) 7 Feb

Problems BZOJ WC2009 Mo's Algorithm
BJST-Week2 总结 5 Feb

BJST BZOJ
bzoj4236: JOIOJI 5 Feb

Problems BZOJ Balanced Tree STL
bzoj2209: [Jsoi2011]括号序列 4 Feb

Problems BZOJ2009 JSOI2011 Splay Tree
bzoj2879: [Noi2012]美食节 4 Feb

Problems BZOJ NOI2012 Network Flow Maximum Flow Minimum Cost SPFA Dynamic Graph Creation
bzoj2561: 最小生成树 3 Feb

Problems BZOJ WC2012 Minimum Cut Network Flow
bzoj2560: 串珠子 3 Feb

Problems BZOJ WC2012 Dynamic Programming Subset DP
bzoj2875: [Noi2012]随机数生成器 3 Feb

Problems BZOJ NOI2012 Matrix Multiplication Fast Exponentiation
bzoj4761: [Usaco2017 Jan]Cow Navigation 3 Feb

Problems BZOJ USACO2017 Dynamic Programming Shortest Path SPFA
bzoj2002: [Hnoi2010]Bounce 弹飞绵羊 3 Feb

Problems BZOJ HNOI2010 Link-Cut Tree
bzoj2876: [Noi2012]骑行川藏 2 Feb

Problems BZOJ NOI2012 Binary Search Number Theory Lagrange Multiplier
bzoj1876: [SDOI2009]SuperGCD 2 Feb

Problems BZOJ SDOI2009 High Precision
bzoj2756: [SCOI2012]奇怪的游戏 2 Feb

Problems BZOJ SCOI2012 Network Flow Minimum Cut Binary Search
bzoj2564: 集合的面积 2 Feb

Problems BZOJ Computational Geometry Convex Hull Graham
bzoj2152: 聪聪可可 1 Feb

Problems BZOJ Dynamic Programming Tree DP
bzoj2660: [Beijing wc2012]最多的方案 1 Feb

Problems BZOJ BJOI2012 Number Theory Dynamic Programming
bzoj2659: [Beijing wc2012]算不出的算式 1 Feb

Problems BZOJ BJOI2012 Number Theory
bzoj3438: 小M的作物 1 Feb

Problems BZOJ Minimum Cut Network Flow
bzoj3436: 小K的农场 1 Feb

Problems BZOJ Difference Constraint System Shortest Path SPFA
bzoj4561: [JLoi2016]圆的异或并 1 Feb

Problems BZOJ JLOI2016 Computational Geometry STL

January, 2017

December, 2016

bzoj3130: [Sdoi2013]费用流 28 Dec

Problems BZOJ SDOI2013 Network Flow Binary Search Analysis Dinic
bzoj3171: [Tjoi2013]循环格 28 Dec

Problems BZOJ TJOI2013 Network Flow
bzoj3996: [TJOI2015]线性代数 28 Dec

Problems BZOJ TJOI2015 Network Flow Dinic
bzoj4514: [Sdoi2016]数字配对 28 Dec

Problems BZOJ SDOI2016 Network Flow Maximum Flow Minimum Cost SPFA
Fiddling with GitHub Atom, With Lots of Packages 27 Dec

GitHub Atom Fiddling
bzoj3894: 文理分科 27 Dec

Problems BZOJ Network Flow Minimum Cut
bzoj2743: [HEOI2012]采花 27 Dec

Problems BZOJ HEOI2012 Fenwick Tree Dynamic Programming
bzoj1834: [ZJOI2010]network 网络扩容 26 Dec

Problems BZOJ ZJOI2010 Network Flow Maximum Flow Minimum Cost Dinic SPFA
WCPST-Week4 总结 26 Dec

WCPST BZOJ Codeforces
bzoj4547: Hdu5171 小奇的集合 26 Dec

Problems BZOJ HDU Greedy Fast Exponentiation Matrix Multiplication
bzoj2424: [HAOI2010]订货 26 Dec

Problems BZOJ HAOI2010 Maximum Flow Minimum Cost SPFA
bzoj2245: [SDOI2011]工作安排 26 Dec

Problems BZOJ SDOI2011 Maximum Flow Minimum Cost SPFA
bzoj1293: [SCOI2009]生日礼物 26 Dec

Problems BZOJ SCOI2009 Greedy Implementation
bzoj1269: [AHOI2006]文本编辑器editor 26 Dec

Problems BZOJ AHOI2006 STL Balanced Tree
bzoj1217: [HNOI2003]消防局的设立 26 Dec

Problems BZOJ HNOI2003 Dynamic Programming Tree DP Greedy
bzoj1215: [HNOI2003]24点游戏 26 Dec

Problems BZOJ HNOI2003 Expression Tree
bzoj1208: [HNOI2004]宠物收养所 26 Dec

Problems BZOJ HNOI2004 STL Balanced Tree Binary Search Fiddling
bzoj1207: [HNOI2004]打鼹鼠 26 Dec

Problems BZOJ HNOI2004 Dynamic Programming Fiddling
bzoj1206: [HNOI2005]虚拟内存 26 Dec

Problems BZOJ HNOI2005 STL Balanced Tree
bzoj1218: [HNOI2003]激光炸弹 24 Dec

Problems BZOJ HNOI2003 Simulation Dynamic Programming
bzoj1216: [HNOI2003]操作系统 24 Dec

Problems BZOJ HNOI2003 Simulation Heap Balanced Tree
bzoj1213: [HNOI2004]高精度开根 23 Dec

Problems BZOJ HNOI2004 High Precision
bzoj1201: [HNOI2005]数三角形 23 Dec

Problems BZOJ HNOI2005 Brute Force
bzoj2748: [HAOI2012]音量调节 23 Dec

Problems BZOJ HAOI2012 Dynamic Programming
bzoj1200: [HNOI2005]木梳 23 Dec

Problems BZOJ HNOI2005 Greedy Analysis
WCPST-Week3 总结 19 Dec

WCPST BZOJ
bzoj1855: [Scoi2010]股票交易 18 Dec

Problems BZOJ SCOI2010 Dynamic Programming Optimized DP
bzoj1806: [Ioi2007]Miners 矿工配餐 17 Dec

Problems BZOJ IOI2007 Dynamic Programming
bzoj1856: [Scoi2010]字符串 17 Dec

Problems BZOJ SCOI2010 Combinatorics Number Theory Extended Euclidean Algorithm
bzoj1018: [SHOI2008]堵塞的交通traffic 17 Dec

Problems BZOJ SHOI2008 Segment Tree Fiddling
bzoj3190: [JLOI2013]赛车 17 Dec

Problems BZOJ JLOI2013 Half-Plane Intersection
bzoj1009: [HNOI2008]GT考试 16 Dec

Problems BZOJ HNOI2008 Fast Exponentiation Matrix Multiplication Knuth-Morris-Pratt Algorithm
bzoj1066: [SCOI2007]蜥蜴 16 Dec

Problems BZOJ SCOI2007 Network Flow Dinic
bzoj2661: [BeiJing wc2012]连连看 15 Dec

Problems BZOJ BJOI2012 Network Flow Maximum Flow Minimum Cost
bzoj1034: [ZJOI2008]泡泡堂BNB 15 Dec

Problems BZOJ ZJOI2008 Sort Implementation
bzoj1014: [JSOI2008]火星人prefix 14 Dec

Problems BZOJ JSOI2008 Splay Tree
bzoj1051: [HAOI2006]受欢迎的牛 14 Dec

Problems BZOJ HAOI2006 Strongly Connected Components Tarjan
bzoj2761: [JLOI2011]不重复数字 13 Dec

Problems BZOJ JLOI2011 Implementation
bzoj1861: [Zjoi2006]Book 书架 13 Dec

Problems BZOJ ZJOI2006 Splay Tree Balanced Tree
bzoj1083: [SCOI2005]繁忙的都市 13 Dec

Problems BZOJ SCOI2005 Minimum Span Tree
bzoj1071: [SCOI2007]组队 13 Dec

Problems BZOJ SCOI2007 Brute Force Implementation
bzoj1082: [SCOI2005]栅栏 13 Dec

Problems BZOJ SCOI2005 Binary Search Brute Force Search
bzoj1052: [HAOI2007]覆盖问题 12 Dec

Problems BZOJ HAOI2007 Binary Search
bzoj1070: [SCOI2007]修车 12 Dec

Problems BZOJ SCOI2007 Network Flow Maximum Flow Minimum Cost Fiddling
WCPST-Week2 总结 12 Dec

WCPST BZOJ
bzoj1057: [ZJOI2007]棋盘制作 12 Dec

Problems BZOJ ZJOI2007 Dynamic Programming
bzoj1010: [HNOI2008]玩具装箱toy 11 Dec

Problems BZOJ HNOI2008 Dynamic Programming Optimized DP
bzoj1025: [SCOI2009]游戏 11 Dec

Problems BZOJ SCOI2009 Dynamic Programming Mathematics Implementation
bzoj1045: [HAOI2008] 糖果传递 11 Dec

Problems BZOJ HAOI2008 Mathematics Patterns
bzoj1054: [HAOI2008]移动玩具 11 Dec

Problems BZOJ HAOI2008 Brute Force Search Breadth First Search
bzoj1047: [HAOI2007]理想的正方形 11 Dec

Problems BZOJ HAOI2007 Dynamic Programming Optimized DP
bzoj1046: [HAOI2007]上升序列 11 Dec

Problems BZOJ HAOI2007 Dynamic Programming Binary Search
bzoj1084: [SCOI2005]最大子矩阵 11 Dec

Problems BZOJ SCOI2005 Dynamic Programming
bzoj1058: [ZJOI2007]报表统计 11 Dec

Problems BZOJ ZJOI2007 Balanced Tree STL
bzoj1069: [SCOI2007]最大土地面积 10 Dec

Problems BZOJ SCOI2007 Computational Geometry Convex Hull
bzoj1864: [Zjoi2006]三色二叉树 10 Dec

Problems BZOJ ZJOI2006 Dynamic Programming Tree DP
bzoj1053: [HAOI2007]反素数ant 10 Dec

Problems BZOJ HAOI2007 Mathematics Number Theory
bzoj1026: [SCOI2009]windy数 10 Dec

Problems BZOJ SCOI2009 Dynamic Programming Digits DP
Custom Highways in Minecraft Using Boats on Packed Ice 9 Dec

Minecraft Construction Transportation
bzoj1008: [HNOI2008]越狱 8 Dec

Problems BZOJ HNOI2008 Combinatorics Fast Exponentiation
NOIP2016 滚粗记 8 Dec

Anecdotes NOIP2016
bzoj3223: Tyvj 1729 文艺平衡树 7 Dec

Problems BZOJ TYVJ Balanced Tree Splay Tree
bzoj3224: Tyvj 1728 普通平衡树 6 Dec

Problems BZOJ TYVJ Balanced Tree Splay Tree
bzoj1412: [ZJOI2009]狼和羊的故事 5 Dec

Problems BZOJ ZJOI2009 Network Flow Graph Theory
bzoj1411: [ZJOI2009]硬币游戏 5 Dec

Problems BZOJ ZJOI2009 Mathematics Implementation Patterns
WCPST-Week1 总结 5 Dec

WCPST BZOJ
bzoj1305: [CQOI2009]dance跳舞 5 Dec

Problems BZOJ CQOI2009 Network Flow Binary Search
bzoj1259: [CQOI2007]矩形rect 5 Dec

Problems BZOJ CQOI2007 Dynamic Programming Socket DP
bzoj1858: [Scoi2010]序列操作 4 Dec

Problems BZOJ SCOI2010 Segment Tree
bzoj1854: [Scoi2010]游戏 4 Dec

Problems BZOJ SCOI2010 Disjoint Set Network Flow
bzoj1853: [Scoi2010]幸运数字 4 Dec

Problems BZOJ SCOI2010 Combinatorics Brute Force Search Optimization
bzoj1260: [CQOI2007]涂色paint 4 Dec

Problems BZOJ CQOI2007 Dynamic Programming Interval DP
bzoj3107: [cqoi2013]二进制a+b 3 Dec

Problems BZOJ CQOI2013 Dynamic Programming
bzoj3106: [cqoi2013]棋盘游戏 3 Dec

Problems BZOJ CQOI2013 Brute Force Search Strategic Theory Logic
bzoj2667: [cqoi2012]模拟工厂 3 Dec

Problems BZOJ CQOI2012 Brute Force Mathematics
bzoj1304: [CQOI2009]叶子的染色 2 Dec

Problems BZOJ CQOI2009 Dynamic Programming Tree DP Fiddling
bzoj1303: [CQOI2009]中位数图 2 Dec

Problems BZOJ CQOI2009 Median Mathematics Dynamic Programming Fiddling

November, 2016

bzoj1258: [CQOI2007]三角形tri 30 Nov

Problems BZOJ CQOI2007 Implementation Simulation
bzoj1257: [CQOI2007]余数之和sum 30 Nov

Problems BZOJ CQOI2007 Mathematics Fiddling
bzoj2666: [cqoi2012]组装 29 Nov

Problems BZOJ CQOI2012 Greedy
bzoj2668: [cqoi2012]交换棋子 29 Nov

Problems BZOJ CQOI2012 Network Flow SPFA
bzoj2665: [cqoi2012]编号 29 Nov

Problems NOIP CQOI2012 Dynamic Programming Digits DP
bzoj3925: [Zjoi2015]地震后的幻想乡 28 Nov

Problems BZOJ ZJOI2015 Graph Theory Mathematical Expectation Dynamic Programming High Precision
bzoj3109: [cqoi2013]新数独 28 Nov

Problems BZOJ CQOI2013 Depth First Search Brute Force Search
bzoj3110: [Zjoi2013]K大数查询 27 Nov

Problems BZOJ ZJOI2013 Segment Tree Weighted Segment Tree Descatterization
bzoj3687: 简单题 27 Nov

Problems BZOJ Mathematics STL Bitset
bzoj3932: [CQOI2015]任务查询系统 27 Nov

Problems BZOJ CQOI2015 Retroactive Data Structures Segment Tree Retroactive Segment Tree
bzoj3931: [CQOI2015]网络吞吐量 27 Nov

Problems BZOJ CQOI2015 Shortest Path SPFA Network Flow Dinic
NOIP-EMU-140906-excel 藏妹子之处 21 Nov

Problems NOIP Emulation Mathematics Implementation
NOIP-EMU-140906-money 工资 21 Nov

Problems NOIP Emulation Binary Search
NOIP-EMU-140614-magic 教主的魔法 21 Nov

Problems NOIP Emulation Fiddling
NOIP-EMU-140614-grading 路面修整 21 Nov

Problems NOIP Emulation Dynamic Programming
NOIP-EMU-140614-catchcow 抓牛 21 Nov

Problems NOIP Emulation Breadth First Search
NOIP-EMU-140531-jx 某种数列问题 21 Nov

Problems NOIP Emulation Dynamic Programming
NOIP-EMU-140524-wormhole 虫洞 21 Nov

Problems NOIP Emulation Shortest Path SPFA
NOIP-EMU-140524-mowlawn 修剪草坪 21 Nov

Problems NOIP Emulation Dynamic Programming
NOIP-EMU-140524-flower 护花 21 Nov

Problems NOIP Emulation Greedy
NOIP-EMU-140517-harem czy的后宫 21 Nov

Problems NOIP Emulation Fast Exponentiation
NOIP-EMU-140517-cube 魔方 21 Nov

Problems NOIP Emulation Implementation
NOIP-EMU-140517-ball 双色球 21 Nov

Problems NOIP Emulation Patterns
NOIP-EMU-140510-holes 虫洞 21 Nov

Problems NOIP Emulation Shortest Path SPFA
NOIP-EMU-140510-seq 序列 21 Nov

Problems NOIP Emulation Fast Exponentiation
NOIP-EMU-140510-robot 机器人 21 Nov

Problems NOIP Emulation Implementation
NOIP-EMU-140315-exploit 经营与开发 21 Nov

Problems NOIP Emulation Dynamic Programming Greedy
NOIP-EMU-140315-num 不等数列 21 Nov

Problems NOIP Emulation Implementation Dynamic Programming
NOIP-EMU-140315-type 高级打字机 21 Nov

Problems NOIP Emulation Stack DFS Sequence
最佳影片《菂萝花》 19 Nov

Repost Movie Dill Flower
NOIP-EMU-141031-move 行动！行动！ 19 Nov

Problems NOIP Emulation Shortest Path SPFA Dijkstra
NOIP-EMU-141031-elephant 小象涂色 19 Nov

Problems NOIP Emulation Dynamic Programming Probability
NOIP-EMU-141031-and 与 19 Nov

Problems NOIP Emulation Greedy
NOIP-EMU-140927-maze 栅栏迷宫 19 Nov

Problems NOIP Emulation Breadth First Search
@xmcp's Automatic Time Reporter 19 Nov

Python Time Text-To-Speech
NOIP-EMU-141031-brtree 16 Nov

Problems NOIP Emulation Mathematics Combinatorics Implementation
Standard Library Container Timing Tests 16 Nov

Analysis STL Container Timing
NOIP-EMU-141030-sdtg 忧桑三角形 14 Nov

Problems NOIP Emulation Tree Implementation Metaphysics Fiddling
NOIP-EMU-141030-mdtg 三角形 14 Nov

Problems NOIP Emulation Brute Force Mathematics Combinatorics Implementation
NOIP-EMU-141031-treas 藏宝图 11 Nov

Problems NOIP Emulation Minimum Span Tree Prim Shortest Path
NOIP-EMU-141031-god 天神下凡 11 Nov

Problems NOIP Emulation Segment Tree Disjoint Set Implementation
NOIP-EMU-141031-dig 挖掘机 11 Nov

Problems NOIP Emulation Brute Force
Migrating WeChat Logs 11 Nov

Debugging WeChat Android Emulator
NOIP-EMU-141102-rollcall 点名 10 Nov

Problems NOIP Emulation Splay Tree Treap
NOIP-EMU-141102-car 四轮车 10 Nov

Problems NOIP Emulation Geometry
NOIP-EMU-141102-disk 盘子序列 10 Nov

Problems NOIP Emulation Brute Force Stack Implementation
NOIP-EMU-141104-swap 交换 10 Nov

Problems NOIP Emulation Dynamic Programming
TopCoder: grafixClick / 250 9 Nov

Problems TopCoder Implementation
TopCoder: grafixMask / 500 9 Nov

Problems TopCoder Breadth First Search
NOIP-EMU-141103-1-sequence 序列问题 9 Nov

Problems NOIP Emulation Dynamic Programming High Precision
NOIP-EMU-141105-pair 数字对 9 Nov

Problems NOIP Emulation Sparse Table Brute Force Implementation
NOIP-EMU-141104-binary 改造二叉树 8 Nov

Problems NOIP Emulation Dynamic Programming Optimized DP Segment Tree Binary Search Splay Tree
bzoj1179: [Apio2009]Atm 8 Nov

Problems BZOJ APIO2009 Strongly Connected Components Shortest Path Tarjan SPFA
NOIP2015-message 信息传递 8 Nov

Problems NOIP2015 Graph Theory Implementation
NOIP2015-magic 神奇的幻方 8 Nov

Problems NOIP2015 Brute Force
Do not mess up with LEQ signs 8 Nov

Anecdotes Typo
NOIP-EMU-141024-shirt 班服 7 Nov

Problems NOIP Emulation Dynamic Programming Compressed DP
NOIP-EMU-141024-meeting 无聊的会议 6 Nov

Problems NOIP Emulation Mathematics Implementation
NOIP-EMU-141024-hdogs 分火腿 6 Nov

Problems NOIP Emulation Number Theory Mathematics Implementation
Found Windows DPI Switching Bug 6 Nov

Bug Reports HiDPI Windows
NOIP-EMU-141023-stol 土豪聪要请客 6 Nov

Problems NOIP Emulation Brute Force Dynamic Programming
NOIP-EMU-141023-pour Jams 倒酒 6 Nov

Problems NOIP Emulation Number Theory Mathematics Implementation
NOIP2009-sodoku 靶形数独 4 Nov

Problems NOIP2009 Brute Force Search Dancing Links X
CCF关于NOI系列赛事程序设计语言变更的公告 4 Nov

News CCF
NOIP2015-landlords 斗地主 4 Nov

Problems NOIP2015 Brute Force Search Dynamic Programming Greedy

October, 2016

Flashing MI 1S: Bricking and Un-bricking 31 Oct

Phones Firmware Tweaking
NOIP-EMU-141006-catclimb 小猫爬山 30 Oct

Problems NOIP Emulation Brute Force Search IDA*
NOIP-EMU-141006-exercise 锻炼计划 30 Oct

Problems NOIP Emulation Segment Tree Brute Force
NOIP-EMU-141005-num 数字 30 Oct

Problems NOIP Emulation Implementation Mathematics
NOIP-EMU-141005-emu 比赛 29 Oct

Problems NOIP Emulation Implementation Mathematics
NOIP-EMU-141005-tree 祖孙询问 29 Oct

Problems NOIP Emulation Heavy Light Decomposition Least Common Ancestors
A Conversation Between Cleverbot 29 Oct

Artificial Intelligence
Google Chrome is Finally Officially Supporting HiDPI 26 Oct

Browser HiDPI Google Google Chrome
NOIP-EMU-141004-formation 球的序列 25 Oct

Problems NOIP Emulation Segment Tree Dynamic Programming Optimized DP Implementation
Minimalized Segment Tree 25 Oct

Segment Tree
Blog Kernel Update, in Python 24 Oct

Python
NOIP2016 初赛 22 Oct

Contests NOIP2016
Fixing Sandisk Ultra CZ48 (Write Protected) 15 Oct

Firmware Flash Drive

August, 2016

bzoj1090: [SCOI2003]字符串折叠 15 Aug

Problems BZOJ SCOI2003 Dynamic Programming Interval DP
bzoj1089: [SCOI2003]严格n元树 15 Aug

Problems BZOJ SCOI2003 Dynamic Programming High Precision
bzoj1088: [SCOI2005]扫雷Mine 15 Aug

Problems BZOJ SCOI2005 Dynamic Programming
bzoj1087: [SCOI2005]互不侵犯King 15 Aug

Problems BZOJ SCOI2005 Dynamic Programming Compressed DP
bzoj1086: [SCOI2005]王室联邦 15 Aug

Problems BZOJ SCOI2005 Dynamic Programming Tree DP
bzoj1085: [SCOI2005]骑士精神 15 Aug

Problems BZOJ SCOI2005 Brute Force Search
bzoj1079: [SCOI2008]着色方案 15 Aug

Problems BZOJ SCOI2008 Dynamic Programming Compressed DP
bzoj1072: [SCOI2007]排列perm 15 Aug

Problems BZOJ SCOI2007 Dynamic Programming Digits DP
bzoj1068: [SCOI2007]压缩 15 Aug

Problems BZOJ SCOI2007 Dynamic Programming Interval DP
bzoj1067: [SCOI2007]降雨量 15 Aug

Problems BZOJ SCOI2007 Implementation
bzoj1060: [ZJOI2007]时态同步 15 Aug

Problems BZOJ ZJOI2007 Greedy Dynamic Programming Tree DP
bzoj1059: [ZJOI2007]矩阵游戏 15 Aug

Problems BZOJ ZJOI2007 Implementation
bzoj1041: [HAOI2008]圆上的整点 15 Aug

Problems BZOJ HAOI2008 Brute Force
Minecraft Smooth Elevator in Commands 14 Aug

Minecraft Command Block Logic
PASCAL to be abolished in CCF/NOI tournaments 8 Aug

News Pascal
Custom terrain in MC 8 Aug

Minecraft Custom Terrain
Playing (Un)legit Survival in MC 7 Aug

Minecraft Survival
bzoj1037: [ZJOI2008]生日聚会Party 2 Aug

Problems BZOJ ZJOI2008 Dynamic Programming
bzoj1031: [JSOI2007]字符加密Cipher 2 Aug

Problems BZOJ JSOI2007 Suffix Array
bzoj1034: [ZJOI2008]泡泡堂BNB 2 Aug

Problems BZOJ ZJOI2008 Greedy

July, 2016

bzoj1024: [SCOI2009]生日快乐 31 Jul

Problems BZOJ SCOI2009 Brute Force Search
bzoj1022: [SHOI2008]小约翰的游戏John 31 Jul

Problems BZOJ SHOI2008 Strategic Theory
bzoj1019: [SHOI2008]汉诺塔 31 Jul

Problems BZOJ SHOI2008 Dynamic Programming
bzoj1013: [JSOI2008]球形空间产生器sphere 30 Jul

Problems BZOJ JSOI2008 Gaussian Elimination Simulated Annealing
bzoj1015: [JSOI2008]星球大战starwar 30 Jul

Problems BZOJ JSOI2008 Disjoint Set
bzoj1012: [JSOI2008]最大数maxnumber 29 Jul

Problems BZOJ JSOI2008 Segment Tree
bzoj1010: [HNOI2008]玩具装箱toy 21 Jul

Problems BZOJ HNOI2008 Dynamic Programming
bzoj1007: [HNOI2008]水平可见直线 21 Jul

Problems BZOJ HNOI2008 Convex Hull Geometry
bzoj1005: [HNOI2008]明明的烦恼 20 Jul

Problems BZOJ HNOI2008 Prufer Sequence High Precision
bzoj1003: [ZJOI2006]物流运输 20 Jul

Problems BZOJ ZJOI2006 Shortest Path Dynamic Programming
bzoj1008: [HNOI2008]越狱 19 Jul

Problems BZOJ HNOI2008 Combinatorics Fast Exponentiation
bzoj1002: [FJOI2007]轮状病毒 19 Jul

Problems BZOJ FJOI2007 Kirchhoff Matrix High Precision
bzoj1001: [BeiJing2006]狼抓兔子 19 Jul

Problems BZOJ BJOI2006 Shortest Path Network Flow Dual Graph
bzoj1000: A+B Problem 19 Jul

Problems BZOJ Implementation
Splay Tree 18 Jul

Splay Tree
Painting in xmpaint 18 Jul

Tutorials
Link Cut Tree 12 Jul

Link-Cut Tree
Experimental Modern House (2nd Update) 11 Jul

Minecraft Architecture
NOI2016 获奖规则、笔试题库 11 Jul

Contests NOI
A new approach to increasing OI training performance: oi-cliassistant 7 Jul

Python

June, 2016

Experimental Modern House in Minecraft 24 Jun

Minecraft Architecture
2016高一数学竞赛 13 Jun

Contests Mathematics

May, 2016

The beginning of time