题解列表
记录每一道题的思路、推导与代码。 共 482 篇题解。
显示全部 482 项
AGC047E Product Simulation 题解
P17781 千早爱音不是罪过 题解
P17802 [CXOI2026] 想要变成鹰的鱼 题解
P17801 [CXOI2026] 大潘小潘向前 p 题解
P17796 [CXOI R7-A] 追忆岁月 题解
P17797 [CXOI R7-B1] 晴涵梦（Easy Version） 题解
P17798 [CXOI R7-B2] 晴涵梦（Hard Version） 题解
P17800 [CXOI R7-D] 使一颗心不免哀伤 题解
P3838 [IOI 2017] Toy Train 题解
P14238 [CCPC 2024 Shandong I] 三角形 题解
P15942 [JOI Final 2026] 赌场 / Casino 题解
P17571 「FAOI-R(-2)」数列计数 2024 题解
P13184 [GCJ 2017 Finals] Teleporters 题解
P17618 [Math+Girl×1] dancing With Myself in the sunset / Wheels Mst 题解
CF2262E Paired Bracket Sequences 题解
CF2248F Matrix Elimination 题解
CF2246F Whoname and Unsorted Array 题解
AT_arc227_f [ARC227F] Erase and Raise 题解
P15992 [PA 2026] 原题加强 2 / Wersja dla profesjonalistów 2 题解
P14490 [集训队互测 2018] 小修和小栋猜数字 题解
CF955F Heaps 题解
P15001 摧毁时间线 题解
AT_arc226_d [ARC226D] Penta-Queue 题解
AT_arc086_c [ARC086E] Smuggling Marbles 题解
P13708 [NWERC 2023] Isolated Island 题解
P9483 [NOI2023] 合并书本 题解
CF2245G NPC Challenge 题解
CF1354G Find a Gift 题解
CF1976F Remove Bridges 题解
CF1266F Almost Same Distance 题解
CF1633F Perfect Matching 题解
CF1303G Sum of Prefix Sums 题解
CF1307F Cow and Vacation 题解
CF1413F Roads and Ramen 题解
CF1957F2 Frequency Mismatch (Hard Version) 题解
P10546 [THUPC 2024 决赛] 采矿 题解
P11018 Monochrome Tree 题解
P11149 [THUWC 2018] 城市规划 题解
P12692 BZOJ3784 树上的路径 题解
P14828 彻彻崩 题解
P15076 [ICPC 2024 Chengdu R] Disrupting Communications 题解
P17141 [NOI 2026] 传送 题解
P5327 [ZJOI2019] 语言 题解
P6018 [Ynoi2010] Fusion tree 题解
CF1572D Bridge Club 题解
CF1268E Happy Cactus 题解
P14383 [JOISC 2017] 港口设施 / Port Facility 题解
P14019 [ICPC 2024 Nanjing R] 地铁 题解
CF1299D Around the World 题解
CF1264E Beautiful League 题解
AT_utpc2023_p Priority Queue 3 题解
P11613 [PA 2016] 覆盖 / Pokrycia 题解
AT_agc036_f [AGC036F] Square Constraints 题解
P13153 [GCJ 2018 Finals] Jurisdiction Restrictions 题解
P11284 「GFOI Round 2」Strings 题解
P10896 移言丁真：Unavoided linyue 题解
AT_agc029_f [AGC029F] Construction of a tree 题解
AT_agc038_f [AGC038F] Two Permutations 题解
AT_agc056_c [AGC056C] 01 Balanced 题解
AT_arc158_d [ARC158D] Equation 题解
CF1061E Politics 题解
CF1146G Zoning Restrictions 题解
CF1278F Cards 题解
CF1286E Fedya the Potter Strikes Back 题解
CF1525F Goblins And Gnomes 题解
CF1548C The Three Little Pigs 题解
CF1762E Tree Sum 题解
CF1765C Card Guessing 题解
CF1766F MCF 题解
CF1842G Tenzing and Random Operations 题解
CF2068K Amusement Park Rides 题解
CF708D Incorrect Flow 题解
CF843E Maximum Flow 题解
P10573 [JRKSJ R8] C0mp0nents 题解
P10992 [蓝桥杯 2023 国 Python A] 最长同类子串 题解
P11531 [THUPC 2025 初赛] 检查站 题解
P13583 [NWRRC 2023] Colorful Village 题解
P14170 二分图最大匹配期望 题解
P14368 [JOISC 2018] 修行 / Asceticism 题解
P4055 [JSOI2009] 游戏 题解
P4152 [WC2014] 时空穿梭 题解
P5287 [HNOI2019] JOJO 题解
P5770 [JSOI2016] 无界单词 题解
P6031 CF1278F Cards 加强版 题解
P6698 [BalticOI 2020] 病毒 (Day2) 题解
P7361 「JZOI-1」拜神 题解
P9374 「DROI」Round 2 单图 题解
P9523 [JOIST 2022] 复制粘贴 3 / Copy and Paste 3 题解
P9682 Electro Master 题解
P12468 [Math×Girl] 距离 题解
CF1101F Trucks and Cities 题解
CF1392G Omkar and Pies 题解
CF1442D Sum 题解
CF1780E Josuke and Complete Graph 题解
CF845F Guards In The Storehouse 题解
P10084 [GDKOI2024 提高组] 计算 题解
P10085 [GDKOI2024 提高组] 染色 题解
P11425 [清华集训 2024] 路南柯 题解
P11444 [Code+#6] 祖玛 题解
P11458 [USACO24DEC] All Pairs Similarity P 题解
P11459 [USACO24DEC] It's Mooin' Time P 题解
P11678 [USACO25JAN] Watering the Plants P 题解
P12074 [OOI 2025] The arithmetic exercise 题解
P12706 蜜蜂构造题 题解
P13691 [CEOI 2025] highest 题解
P13939 [EC Final 2019] Black and White 题解
P14106 [ZJCPC 2017] Yet Another Game of Stones 题解
P14198 [ICPC 2024 Hangzhou R] Let's Go! New Adventure 题解
P14344 [JOISC 2019] 两道料理 / Two Dishes 题解
P14347 [JOISC 2019] 灯 / Lamps 题解
P14388 [JOISC 2017] 长途巴士 / Long Distance Coach 题解
P15077 [ICPC 2024 Chengdu R] Double 11 题解
P15108 白井黑子 题解
P15301 [ROI 2012 Day 2] army 汗国军队 题解
P16160 [ICPC 2016 NAIPC] Jewel Thief 题解
P16329 bloom 题解
P3665 [USACO17OPEN] Switch Grass P 题解
P5400 [CTS2019] 随机立方体 题解
P6965 [NEERC 2016] Binary Code 题解
P7843 「C.E.L.U-03」布尔 题解
P7985 [USACO21DEC] Paired Up P 题解
P9139 [THUPC 2023 初赛] 喵了个喵 II 题解
P9225 「PEOI Rd1」寻宝（treasure） 题解
P9338 [JOIST 2023] 合唱 / Chorus 题解
P9962 [THUPC 2024 初赛] 一棵树 题解
P13540 [IOI 2025] 羊驼的坎坷之旅（obstacles） 题解
P3421 [POI 2005] SKO-Knights 题解
P6794 [SNOI2020] 水池 题解
P5101 [JOI 2017 Final] 绳 / Rope 题解
P9499 「RiOI-2」change 题解
P2145 [JSOI2007] 祖玛 题解
CF2245F Familiar? 题解
CF1239B The World Is Just a Programming Task (Hard Version) 题解
CF1312G Autocompletion 题解
AT_agc049_d [AGC049D] Convex Sequence 题解
P10803 [CEOI 2024] 文本编辑器 题解
P14606 [NWRRC 2025] Games of Chess 题解
AT_abc257_h [ABC257Ex] Dice Sum 2 题解
AT_abc270_h [ABC270Ex] add 1 题解
AT_arc165_e [ARC165E] Random Isolation 题解
CF1025G Company Acquisitions 题解
CF1349D Slime and Biscuits 题解
CF1392F Omkar and Landslide 题解
CF1733E Conveyor 题解
CF1819D Misha and Apples 题解
CF1823F Random Walk 题解
CF1919F2 Wine Factory (Hard Version) 题解
CF436E Cardboard Box 题解
CF850F Rainbow Balls 题解
CF869E The Untended Antiquity 题解
P10587 「ALFR Round 2」C 小 Y 的数 题解
P11191 「KDOI-10」超级演出 题解
P11660 我终将成为你的倒影 题解
P12479 [集训队互测 2024] 长野原龙势流星群 题解
P12587 「KTSC 2019 R2」外星仙人掌 题解
P13552 鱼类考古学 题解
P13780 「o.OI R2」愿天堂没有分块 题解
P14268 [ROI 2015 Day2] 路灯 题解
P14761 [Opoi 2025] CCD 的序列 题解
P15672 [ICPC 2024 Jakarta R] Narrower Passageway 题解
P17145 [NOI 2026] 彩虹树 题解
P2235 [HNOI2002] Kathy函数 题解
P2284 [HNOI2003] 密室之门 题解
P2305 [NOI2014] 购票 题解
P3345 [ZJOI2015] 幻想乡战略游戏 题解
P3546 [POI 2012] PRE-Prefixuffix 题解
P3706 [SDOI2017] 硬币游戏 题解
P3920 [WC2014] 紫荆花之恋 题解
P4098 [HEOI2013] ALO 题解
P4220 [WC2018] 通道 题解
P4292 [WC2010] 重建计划 题解
P5278 算术天才⑨与等差数列 题解
P5524 [Ynoi2012] NOIP2015 充满了希望 题解
P5953 [POI 2018] Różnorodność 题解
P7215 [JOISC 2020] 首都 题解
P8684 [蓝桥杯 2019 省 B] 灵能传输 题解
P9965 [THUPC 2024 初赛] 转化 题解
P11164 [BalkanOI 2023] Permutations 题解
P13618 [ICPC 2024 APC] Bánh Bò 题解
P14211 [ROI 2016 Day2] 快递服务 题解
CF2242F Summer Vacation 题解
CF2242E Product of Closures 题解
P17064 [JRKSJ R10 热身赛] Infinite Strife, 题解
P10103 [GDKOI2023 提高组] 错排 题解
CF1033E Hidden Bipartite Graph 题解
P17002 [NWERC 2019] 无用交换机 / Disposable Switches 题解
CF493E Vasya and Polynomial 题解
P11812 [PA 2015] 精确打击 / Kontrmanifestacja 题解
P16942 「LAOI-18」铃喵 题解
P11815 [PA 2019 Final] 领地 / Terytoria 题解
CF1654F Minimal String Xoration 题解
这么喜欢诈骗
CF1450E Capitalism 题解
P1001 A+B Problem 题解
最经典的 A+B Problem，适合测试提交环境。
P14510 夜里亦始终想念着你 miss 题解
暂无
P16910 「MierOI R2」靈 题解
拿下周边
P15419 「yrOI R1」冬日永恒 题解
CF1884E Hard Design 题解
P15421 像你这样的朋友 题解
P16637 春季限定独立集问题 题解
P15479 [CERC2012] Non-boring sequences 题解
CF1107F Vasya and Endless Credits 题解
CF1260F Colored Tree 题解
P5904 [POI 2014] HOT-Hotels 加强版 题解
CF1129C Morse Code 题解
P12866 [JOI Open 2025] 抽奖 / Lottery 题解
CF1418F Equal Product 题解
P12441 [NERC2023] Joy of Pokémon Observation 题解
P16362 [BalticOI 2026] Sort 题解
P16433 [APIO 2026 中国赛区] 上升 题解
CF1325F Ehab's Last Theorem 题解
P12293 [蓝桥杯 2024 国 Java A] 合并小球 题解
P11288 [COTS 2017] 模板 Z1 题解
P12936 [NERC 2019] Cactus Revenge 题解
P16357 [BalticOI 2026] Blocks 题解
AT_arc136_d [ARC136D] Without Carry 题解
P13233 [GCJ 2015 Finals] Costly Binary Search 题解
CF1508E Tree Calendar 题解
P9850 [ICPC 2021 Nanjing R] Ancient Magic Circle in Teyvat 题解
P6766 [APIO2020] 有趣的旅途 题解
CF1444C Team-Building 题解
P6009 [USACO20JAN] Non-Decreasing Subsequences P 题解
AT_arc122_d [ARC122D] XOR Game 题解
AT_abc450_g [ABC450G] Random Subtraction 题解
P15502 [ICPC 2025 APC] Book Sorting 题解
CF1404D Game of Pairs 题解
CF1545C AquaMoon and Permutations 题解
CF850D Tournament Construction 题解
P15555 [CCPC 2025 哈尔滨站] 比赛 题解
CF1379E Inverse Genealogy 题解
CF1830D Mex Tree 题解
CF1612G Max Sum Array 题解
CF1613F Tree Coloring 题解
CF1622F Quadratic Set 题解
CF1620F Bipartite Array 题解
CF1632E2 Distance Tree (hard version) 题解
AT_arc127_e [ARC127E] Priority Queue 题解
CF1582G Kuzya and Homework 题解
CF1623E Middle Duplication 题解
CF1626F A Random Code Problem 题解
CF1679F Formalism for Formalism 题解
CF1734F Zeros and Ones 题解
P15653 [省选联考 2026] 星图 题解
CF1656F Parametric MST 题解
AT_agc071_c [AGC071C] Orientable as Desired 题解
CF1097G Vladislav and a Great Legend 题解
CF1579G Minimal Coverage 题解
CF1598F RBS 题解
CF1614D1 Divan and Kostomuksha (hard version) / CF1614D2 Divan and Kostomuksha (hard version) 题解
CF1768E Partial Sorting 题解
CF2204G Grid Path 题解
CF521D Shop 题解
CF852A Digits 题解
P15741 [JAG 2024 Summer Camp #2] Max Sum of GCD 题解
P15761 [JAG 2025 Summer Camp #1] Colored Tree and Path 题解
P3644 [APIO2015] 巴邻旁之桥 题解
CF331D3 Escaping on Beaveractor 题解
CF1906C Cursed Game 题解
CF1975G Zimpha Fan Club 题解
CF641F Little Artem and 2-SAT 题解
CF1381D The Majestic Brown Tree Snake 题解
CF1411F The Thorny Path 题解
CF1344F Piet's Palette 题解
CF1408H Rainbow Triples 题解
P15416 「yrOI R1」夏日已逝 题解
P15265 [USACO26JAN2] Dynamic Instability P 题解
AT_awc0001_a バクテリアの増殖実験 题解
P15235 「CROI · R3」浣熊的小游戏 题解
P10741 [SEERC 2020] Fence Job 题解
AT_ajo2024_final_c Final Exam 题解
P9535 [YsOI2023] 连通图计数 题解
P1691 [ICPC 2016 WF] Oil 题解
P15191 [SWERC 2019] Pseudo-Random Number Generator 题解
SP27098 FN16OIL - Oil 题解
CF1730D Prefixes and Suffixes 题解
P15164 [SWERC 2022] Spinach Pizza 题解
CF1776I Spinach Pizza 题解
CF1693D Decinc Dividing 题解
CF1144G Two Merged Sequences 题解
P5172 [清华集训 2014] Sum 题解
CF1600F Party Organization 题解
CF1929E Sasha and the Happy Tree Cutting 题解
P12417 基础构造练习题 1 题解
CF1691F K-Set Tree 题解
CF2048G Kevin and Matrices 题解
P10871 [COTS 2022] 皇后 Kraljice 题解
P14610 [NWRRC 2025] Keys and Grates 题解
P14564 圆环 题解
P14421 [JOISC 2014] 拉面比较 / Ramen 题解
P7974 [KSN2021] Delivering Balls 题解
P14300 [JOI2023 预选赛 R2] 货物列车 / Freight Train 题解
P14415 [JOISC 2015] 遗产继承 / Inheritance 题解
P10665 [AMPPZ2013] Bytehattan 题解
P9920 「RiOI-3」变换，反演 题解
P10045 [CCPC 2023 北京市赛] 线段树 题解
P6012 [P5087] 数学 加强版 题解
P10756 [COI 2023] Sličnost 题解
CF2085F2 Serval and Colorful Array (Hard Version) 题解
P3641 [APIO2016] 最大差分 题解
P6790 [SNOI2020] 生成树 题解
P10832 [COTS 2023] 传 Mapa 题解
P14449 [ICPC 2025 Xi'an R] Catch the Monster 题解
P14315 [Aboi Round 2] Faputa 题解
P5667 拉格朗日插值2 题解
CF2163D1 Diadrash (Easy Version) 题解
CF2163D2 Diadrash (Hard Version) 题解
CF622F The Sum of the k-th Powers 题解
P11536 [NOISG 2023 Finals] Curtains 题解
P11620 [Ynoi Easy Round 2025] TEST_34 题解
P14455 [ICPC 2025 Xi'an R] Imagined Holly 题解
P1993 小 K 的农场 题解
P3430 [POI 2005] DWU-Double-row 题解
P5290 [十二省联考 2019] 春节十二响 题解
P5395 第二类斯特林数·行 题解
P5396 第二类斯特林数·列 题解
P5408 第一类斯特林数·行 题解
P6130 随机红包 题解
P6898 [ICPC 2014 WF] Metal Processing Plant 题解
P7624 [AHOI2021初中组] 地铁 题解
P7962 [NOIP2021] 方差 题解
P8321 『JROI-4』沈阳大街 2 题解
P5621 [DBOI2019] 德丽莎世界第一可爱 题解
P7315 [COCI 2018/2019 #3] Sajam 题解
P14224 [ICPC 2024 Kunming I] 子数组 题解
CF720A Closing ceremony 题解
P13382 [GCJ 2011 Finals] Runs 题解
P14303 [GCJ 2011 Finals] Runs 加强版 题解
SP3912 MTREECOL - Color a tree 题解
CF946E Largest Beautiful Number 题解
AT_agc003_e [AGC003E] Sequential operations on Sequence 题解
P5955 [POI 2018] Pionek 题解
P12766 [POI 2018 R3] 完备数 Complete numbers 题解
P10671 BZOJ1278 向量 vector 题解
P10664 BZOJ3328 PYXFIB 题解
P14185 回文子串划分计数 题解
CF932G Palindrome Partition 题解
CF870E Points, Lines and Ready-made Titles 题解
AT_abc230_g [ABC230G] GCD Permutation 题解
P7561 [JOISC 2021] 道路の建設案 (Road Construction) (Day2) 题解
P14154 [ICPC 2022 Nanjing R] 索道 题解
P14162 [ICPC 2022 Nanjing R] 完美匹配 题解
P14153 [ICPC 2022 Nanjing R] 停停，昨日请不要再重现 题解
P14161 [ICPC 2022 Nanjing R] 完美回文 题解
P14159 [ICPC 2022 Nanjing R] 邪恶铭刻 题解
P14156 [ICPC 2022 Nanjing R] 聊天程序 题解
P14158 [ICPC 2022 Nanjing R] 三角形 题解
P9849 [ICPC 2021 Nanjing R] Xingqiu's Joke 题解
P9847 [ICPC 2021 Nanjing R] Crystalfly 题解
CF794E Choosing Carrot 题解
P13509 [OOI 2024] Almost Certainly 题解
P4347 [CERC2015] Book Borders 题解
AT_arc116_f [ARC116F] Deque Game 题解
AT_agc029_b [AGC029B] Powers of two 题解
CF185D Visit of the Great 题解
P9841 [ICPC 2021 Nanjing R] Puzzle in Inazuma 题解
CF729F Financiers Game 题解
CF403D Beautiful Pairs of Numbers 题解
CF2133E I Yearned For The Mines 题解
CF1513E Cost Equilibrium 题解
CF317B Ants 题解
CF1789F Serval and Brain Power 题解
P6122 [NEERC 2016] Mole Tunnels 题解
CF1458D Flip and Reverse 题解
P13536 [IOI 2025] 神话三峰（triples）（Part 1） 题解
P13271 [NOI2025] 机器人 题解
AT_agc017_e [AGC017E] Jigsaw 题解
P5481 [BJOI2015] 糖果 题解
P3805 【模板】Manacher 题解
P1943 Local Maxima 题解
CF830E Perpetual Motion Machine 题解
P3412 仓鼠找sugar II 题解
P11073 Game King 题解
P12055 [THUPC 2025 决赛] 一个 01 串，n 次三目运算符，最后值为 1 题解
CF1131G Most Dangerous Shark 题解
CF2089D Conditional Operators 题解
P3278 [SCOI2013] 多项式的运算 题解
P3272 [SCOI2011] 地板 题解
P12179 DerrickLo's Game (UBC002B) 题解
CF1919D 01 Tree 题解
CF979E Kuro and Topological Parity 题解
AT_arc195_e [ARC195E] Random Tree Distance 题解
P4484 [BJWC2018] 最长上升子序列 题解
B4269 [朝阳区小学组 2019] square 题解
CF2091G Gleb and Boating 题解
P8456 「SWTR-8」地地铁铁 题解
P11952 [科大国创杯初中组 2023] 行走 题解
CF2081D MST in Modulo Graph 题解
CF1045C Hyperspace Highways 题解
AT_joisc2016_i 電報 题解
P6335 [COCI 2007/2008 #1] STAZA 题解
CF2077B Finding OR Sum 题解
P3050 [USACO12MAR] Large Banner G 题解
P11855 [CSP-J 2022 山东] 部署 题解
P11854 [CSP-J 2022 山东] 宴会 题解
P11856 [CSP-J 2022 山东] 吟诗 题解
CF804E The same permutation 题解
CF1420D Rescue Nibel! 题解
CF1996G Penacony 题解
CF1951E No Palindromes 题解
CF837E Vasya's Function 题解
CF1943C Tree Compass 题解
CF1815F OH NO1 (-2-3-4) 题解
CF1977E Tensor 题解
CF97D Robot in Basement 题解
CF1042F Leaf Sets 题解
CF629D Babaei and Birthday Cake 题解
AT_arc149_c [ARC149C] Avoid Prime Sum 题解
AT_arc193_a [ARC193A] Complement Interval Graph 题解
CF1310D Tourism 题解
CF1137B Camp Schedule 题解
CF1693C Keshi in Search of AmShZ 题解
CF812E Sagheer and Apple Tree 题解
P11604 [PA 2016] 卡牌 / Gra w karty 题解
CF1270E Divide Points 题解
CF1029E Tree with Small Distances 题解
CF446D DZY Loves Games 题解
CF1943B Non-Palindromic Substring 题解
CF1592F2 Alice and Recoloring 2 题解
CF1839E Decreasing Game 题解
CF1732D2 Balance (Hard version) 题解
CF1732D1 Balance (Easy version) 题解
CF1981D Turtle and Multiplication 题解
CF51E Pentagon 题解
CF732F Tourist Reform 题解
CF40E Number Table 题解
CF793C Mice problem 题解
CF364C Beautiful Set 题解
CF126D Fibonacci Sums 题解
CF1705E Mark and Professor Koro 题解
CF425D Sereja and Squares 题解
CF898F Restoring the Expression 题解
CF300E Empire Strikes Back 题解
CF908G New Year and Original Order 题解
CF895E Eyes Closed 题解
CF460D Little Victor and Set 题解
CF1967C Fenwick Tree 题解
CF607C Marbles 题解
CF1411E Poman Numbers 题解
CF1623D Robot Cleaner Revisit 题解
CF178F3 Representative Sampling 题解
CF1605D Treelabeling 题解
CF2056D Unique Median 题解
CF1983F array-value 题解
CF1238E Keyboard Purchase 题解
CF1553F Pairwise Modulo 题解
CF1498E Two Houses 题解
CF484B Maximum Value 题解
CF1470D Strange Housing 题解
CF1923E Count Paths 题解
CF2049E Broken Queries 题解
CF147B Smile House 题解
CF1712E1 LCM Sum (easy version) 题解
CF1646E Power Board 题解
AT_tdpc_lexicographical 辞書順 题解
AT_tdpc_tree 木 题解
CF2036G Library of Magic 题解
CF1834D Survey in Class 题解
CF1884D Counting Rhyme 题解
CF1886D Monocarp and the Set 题解
CF1617D1 Too Many Impostors (easy version) 题解
CF1780D Bit Guessing Game 题解
CF1796D Maximum Subarray 题解
CF1804D Accommodation 题解
CF2030D QED's Favorite Permutation 题解
CF2030B Minimise Oneness 题解
CF1731E Graph Cost 题解
CF1442C Graph Transpositions 题解
CF1165F2 Microtransactions (hard version) 题解
CF1165F1 Microtransactions (easy version) 题解
CF1481D AB Graph 题解
P7670 [JOI 2018 Final] 毒蛇越狱 / Snake Escaping 题解
AT_joi2018ho_e 毒蛇の脱走 (Snake Escaping) 题解
AT_joi2018ho_d 定期券 (Commuter Pass) 题解
P7669 [JOI 2018 Final] 月票购买 / Commuter Pass 题解
CF1358E Are You Fired? 题解
CF1453E Dog Snacks 题解
P11078 「FSLOI Round I」迷雾 题解
P2998 [USACO10NOV] Candy S 题解
P10895 选择困难症 题解
CF1619E MEX and Increments 题解
CF863E Turn Off The TV 题解
CF888D Almost Identity Permutations 题解
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