題目清單 12000 - 12999

120 - Volume CXX
題號	標題	難度	參考解題方向	備註
12000	K-Transformed Permutations
12001	UVa Panel Discussion			ruby 兔
12002	Happy Birthday			ruby 兔
12003	Array Transformer			ruby 兔
12004	Bubble Sort			lucky 貓
12005	Find Solutions			ruby 兔
12006	Paint Brush
12007	Crossboard Coloring
12008	Emotional Bishop
12009	Avaricious Maryanna
12010	Boring Homework
12011	Complete the Set
12012	Detection of Extraterrestrial
12013	Entertainment
12014	Fudan Extracurricular Lives
12015	Google is Feeling Lucky			ruby 兔
12016	Herbicide
12017	Imitation
12018	Juice Extractor
12019	Doom's Day Algorithm	1.0	Ad-hoc, Math, Date problem	lucky 貓
12020	The Election Day
12021	Universal Elections
12022	Ordering T-shirts			ruby 兔
12023	Escher and Tessellations
12024	Hats			ruby 兔
12025	Wrong Keys
12026	Radars
12027	Very Big Perfect Squares			ruby 兔
12028	A Gift from the Setter			ruby 兔
12029	Flying Spaceships
12030	Help the Winners
12031	Summation of Four Squares
12032	The Monkey and the Oiled Bamboo			ruby 兔
12033	Game of CS
12034	Race			ruby 兔
12035	War Map
12036	Stable Grid			ruby 兔
12037	Musical Chair
12038	Batting Practice
12039	Goldbach's Cardinality
12040	Again Lucky Numbers
12041	BFS (Binary Fibonacci String)			ruby 兔
12042	Colorful Eggs
12043	Divisors			ruby 兔
12044	Extreme Divisors
12045	Fun with Strings
12046	Great Numbers
12047	Highest Paid Toll
12048	Inhabitants
12049	Just Prune The List			ruby 兔
12050	Palindrome Numbers
12051	Mazes in Higher Dimensions
12052	Cyber cafe
12053	Unbreakable Floor
12054	Find the Project
12055	Strange Research
12056	Circle Strafing
12057	Prefix Codes
12058	Highway Monitor
12059	Volume Measurement
12060	All Integer Average
12061	Overlaying Maps
12062	Reverse Assignment
12063	Zeros and Ones
12064	Count the Points Inside
12065	Permutation Primes
12066	The Fairy Tale of ICPC
12067	Guinea Rats
12068	Harmonic Mean			ruby 兔
12069	Robots inside the Labyrinth
12070	Invite Your Friends
12071	Understanding Recursion
12072	Matrissor
12073	Altitude Triangle
12074	The Ultimate Bamboo Eater
12075	Counting Triangles
12076	Unequalled Consumption
12077	Declaration of Content
12078	Laserbox
12079	Bowlstack
12080	Pesky Heroes
12081	Reduced ID Numbers
12082	Tantrix
12083	Guardian of Decency
12084	Up the Stairs
12085	Mobile Casanova
12086	Potentiometers
12087	Collecting Marbles
12088	Expression
12089	The Luncheon
12090	Counting Zeroes
12091	Multiplication
12092	Paint the Roads
12093	Protecting Zonk
12094	Battle of the Triangle
12095	Sudoku
12096	The SetStack Computer
12097	Pie
12098	Ticket to Ride
12099	The Bookcase
121 - Volume CXXI
題號	標題	難度	參考解題方向	備註
12100	Printer Queue
12101	Prime Path
12102	Lineland's Airport
12103	Leonardo's Notebook
12104	A Rod in a Path
12105	Bigger is Better
12106	Collapse!!
12107	Digit Puzzle
12108	Extraordinarily Tired Students
12109	Fairies' Defence
12110	Gargoyle
12111	Hidden Music Score
12112	Iceman
12113	Overlapping Squares
12114	Bachelor Arithmetic
12115	Nested Squares
12116	The Dumb Grocer
12117	ACM Puzzles
12118	Inspector's Dilemma
12119	The Bells are Ringing
12120	Photographic Tour
12121	You are around me ...
12122	Infinite Matrix
12123	Magnetic Train Tracks
12124	Assemble
12125	March of the Penguins
12126	Containers
12127	Youth Hostel Dorm
12128	Escape from Enemy Territory
12129	Flight Safety
12130	Summits
12131	Obfuscation
12132	Tower Parking
12133	Walk
12134	Find the Format String
12135	Switch Bulbs
12136	Schedule of a Married Man
12137	Puzzles of Triangles
12138	Chemical Plant
12139	Clicking Checkboxes
12140	Magic Rings
12141	Line Chart
12142	Mobile Tower
12143	Stopping Doom's Day
12144	Almost Shortest Path
12145	Bases
12146	Candy
12147	DNA Sequences
12148	Electricity
12149	Feynman	1.0	Math, Summation	lucky 貓
12150	Pole Position
12151	Higgs Boson
12152	Traveling Shoemaker Problem
12153	Bora Bora
12154	Shrinking Polygons
12155	ASCII Diamondi
12156	Match Maker
12157	Tariff Plan
12158	Irreducible Fractions
12159	Gun Fight
12160	Unlock the Lock
12161	Ironman Race in Treeland
12162	Shooting the Monster
12163	Addition-Subtraction Game
12164	The Great Game
12165	Triangle Hazard
12166	Equilibrium Mobile
12167	Proving Equivalences
12168	Cat vs. Dog
12169	Disgruntled Judge
12170	Easy Climb
12171	Sculpture
12172	Matchsticks
12173	White Water Rafting
12174	Shuffle
12175	Videopoker
12176	Bring Your Own Horse
12177	First Knight
12178	Postal Charges
12179	Randomly-priced Tickets
12180	The Game
12181	The Merchant Guild
12182	Toll Road
12183	Top Secret
12184	Transcribed Books
12185	Wizards
12186	Another Crisis
12187	Brothers
12188	Code Lock
12189	Dinner Hall
12190	Electric Bill
12191	File Recover
12192	Grapevine
12193	Hooligan
12194	Isosceles Triangles
12195	Jingle Composing
12196	Klingon Levels
12197	Trick or Treat
12198	Working at the Restaurant
12199	Lights
122 - Volume CXXII
題號	標題	難度	參考解題方向	備註
12200	Darts
12201	Genetics
12202	Haunted Graveyard
12203	Slalom
12204	Routing
12205	Happy Telephones
12206	Stammering Aliens
12207	That is Your Queue
12208	How Many Ones Needed?			lucky 貓
12209	Foot Notes
12210	A Match Making Problem
12211	Games of Block
12212	Password Remembering
12213	Camera in the Museum
12214	Traffic Jam
12215	Rectangle of Permutation
12216	How Many bases?
12217	Integer Game
12218	An Industrial Spy
12219	Common Subexpression Elimination
12220	Divisible Subsequences
12221	Fractal
12222	Mountain Road
12223	Moving to Nuremberg
12224	Room Assignments
12225	Settlers of Catan
12226	Simple Polygon
12227	Wormholes
12228	Assembling Services
12229	Box Relations
12230	Crossing Rivers
12231	Download Manager
12232	Exclusive-OR
12233	Final Combat
12234	Gift Hunting
12235	Help Bubu
12236	In a Crazy City
12237	Jiajia's Robot
12238	Ants Colony
12239	Bingo!
12240	Cocircular Points
12241	Digits Count
12242	Electric Needs
12243	Flowers Flourish from France	1.0	Ad hoc, Count letter
12244	Growing Strings
12245	Hyperactive Girl
12246	Ingenious Metro
12247	Jollo
12248	Kids' Wishes
12249	Overlapping Scenes
12250	Language Detection	1.0	String	ZeroJudge
12251	Scientific Experiment
12252	ABCD Tiles
12253	Simple Encryption
12254	Electricity Connection
12255	Underwater Snipers
12256	Making Quadrilaterals
12257	The Queue
12258	Air Pollution Problem
12259	Fair Division
12260	Free Goodies
12261	High Score
12262	Hill Driving
12263	Rankings
12264	Risk
12265	Selling Land
12266	Stock Prices
12267	Telephone Network
12268	Wormly
12269	Lawn mower
12270	Periodic points
12271	Comparing answers
12272	Fake scoreboard
12273	Palindromic DNA
12274	Jumping monkey
12275	Sensor network
12276	Assembly line
12277	Locks and keys
12278	3-sided dice
12279	Emoogle Balance	1.0	Ad hoc, Loop
12280	A Digital Satire of Digital Age
12281	Hyper Box
12282	OmniGravity
12283	Halloween Costumes
12284	Digital Matrix
12285	Knockout Tournaments
12286	Optimal Store
12287	Network Flow
12288	Hyper Knights
12289	One-Two-Three	1.0	Brute force	lucky 貓
12290	Counting Game
12291	Polyomino Composer
12292	Polyomino Decomposer
12293	Box Game	2.5	DP, Game theory	lucky 貓
12294	RPG battles
12295	Optimal Symmetric Paths
12296	Pieces and Discs
12297	Super Poker
12298	Super Poker II
12299	RMQ with Shifts
123 - Volume CXXIII
題號	標題	難度	參考解題方向	備註
12300	Smallest Regular Polygon
12301	An Angular Puzzle
12302	Nine-Point Circle
12303	Composite Transformations
12304	2D Geometry 110 in 1!
12305	Polishing a Extruded Polygon
12306	My SketchUp
12307	Smallest Enclosing Rectangle
12308	Smallest Enclosing Box
12309	A Strange Opera House II
12310	Point Location
12311	All-Pair Farthest Points
12312	Bounding Volume Hierarchy
12313	A Tiny Raytracer
12314	The Cleaning Robot
12315	The Starflyer Agents
12316	Sewing Buttons with Grandma
12317	Document Compression
12318	Digital Roulette
12319	Edgetown's Traffic Jams
12320	Flight Control
12321	Gas Stations
12322	Handgun Shooting Sport
12323	Inspecting Radars
12324	Philip J. Fry Problem
12325	Zombie's Treasure Chest
12326	Yummy Triangular Pizza
12327	Xavier is Learning to Count
12328	Winmine.exe
12329	Very Boring Homework
12330	Universal Question Answering System
12331	Triangles and Quadrangle
12332	Share the Cakes
12333	Revenge of Fibonacci
12334	Quelling Blade
12335	Lexicographic Order
12336	Knights in the Zombie Land
12337	Bob's Beautiful Balls
12338	Anti-Rhyme Pairs
12339	Help Hermione
12340	Integer Grouping
12341	Next to Never
12342	Tax Calculator
12343	Strange Simulation
12344	Jewel Transportation
12345	Dynamic len(set(a[L:R]))
12346	Water Gate Management
12347	Binary Search Tree
12348	Fun Coloring
12349	Twin Apparent Primes!!
12350	Queen Game
12351	Spelling Suggestion
12352	Coalescing Continents
12353	Fence Making
12354	Paths in a Tree
12355	Consecutive Sums
12356	Army Buddies
12357	Ball Stacking
12358	Candy's Candy
12359	Diccionario Portunol
12360	Elecrical Pollution
12361	File Retrieval
12362	Garden Fence
12363	Hedge Mazes
12364	In Braille
12365	Jupiter Atacks!
12366	King's Poker
12367	Binary Matrix
12368	Candles
12369	Cards
12370	Game of Connect
12371	Guards
12372	Packing for Holiday
12373	Pair of Touching Circles
12374	Treasure Hunt
12375	Truchet Tiling
12376	As Long as I Learn, I Live
12377	Number Coding
12378	Ball Blasting Game
12379	Central Post Office
12380	Glimmr in Distress
12381	Our Fair Contest!
12382	Grid of Lamps
12383	The Game
12384	Span
12385	Interesting Sequences
12386	Smallest Polygon
12387	Alphabet Soup
12388	Coin Collecting
12389	Cybercrime Donut Investigation
12390	Distributing Ballot Boxes
12391	Game, Set and Match
12392	Guess the Numbers
12393	Non-negative Partial Sums
12394	Peer Review
12395	Regular Convex Polygon
12396	Remoteland
12397	Roman Numerals
12398	NumPuzz I
12399	NumPuzz II
124 - Volume CXXIV
題號	標題	難度	參考解題方向	備註
12400	3, 2, 1, 0
12401	Metal Powers
12402	Parallel Missions
12403	Save Setu
12404	Trapezium Drawing
12405	Scarecrow			lucky 貓
12406	Help Dexter			lucky 貓
12407	Speed Zones
12408	Multi Round Matches
12409	Kisu Pari Na - 1
12410	Disable the Wand
12411	A Dangerous Maze (II)
12412	A Typical Homework (a.k.a Shi Xiong Bang Bang Mang)
12413	Big Decimal Calculator
12414	Calculating Yuan Fen			lucky 貓
12415	Digit Patterns
12416	Excessive Space Remover			lucky 貓
12417	Formula Editor
12418	Game of 999
12419	Heap Manager
12420	Item-Based Recommendation
12421	(Jiandan) Mua (I) - Lexical Analyzer
12422	(Kengdie) Mua (II) - Expression Evaluator
12423	(Last) Mua(III) - Full Interpreter
12424	Answering Queries on a Tree
12425	Best Friend
12426	Counting Triangles
12427	Donkey of the Sultan
12428	Enemy at the Gates
12429	Finding Magic Triplets
12430	Grand Wedding
12431	Happy 10/9 Day
12432	Inked Carpets
12433	Rent a Car
12434	Infinite Stable Integer
12435	Consistent Verdicts
12436	Rip Van Winkle's Code
12437	Kisu Pari Na 2
12438	Farey Polygon
12439	February 29	1.5	Ad hoc, Date problem	lucky 貓
12440	Save the Trees
12441	Superb Sequence
12442	Forwarding Emails			lucky 貓
12443	Quad
12444	Bits and Pieces
12445	Happy 12
12446	How Many... in 3D!
12447	Pieces and Bits
12448	Casino Advantage
12449	Night Market
12450	SpaceRecon Tournament
12451	Let's call SPaDe a SPaDe
12452	Plants vs. Zombies HD SP
12453	Simulating Billiard Ball
12454	Plan B for next SWERC
12455	Bars			lucky 貓
12456	Mirror codes
12457	Tennis contest
12458	Oh, my trees!
12459	Bees' ancestors	2.0	DP, Fibonacci number	lucky 貓
12460	Careful teacher
12461	Airplane			lucky 貓
12462	Rectangle
12463	Little Nephew
12464	Professor Lazy, Ph.D.
12465	The Turanga Leela Problem
12466	Ancestors
12467	Secret Word
12468	Zapping	1.0	Ad-hoc, Min-max	lucky 貓
12469	Stones
12470	Tribonacci
12471	Association of Strings
12472	Binary Substring
12473	Common Palindrome
12474	Draw and Score
12475	Elliptic Athletics Track
12476	Fun with Binary Tree
12477	Good Measures of Dispersion
12478	Hardest Problem Ever (Easy)
12479	Interesting Route
12480	Just Some Permutations
12481	K-Neutral Rectangles
12482	Short Story Competition
12483	Toboggan of Marbles
12484	Cards
12485	Perfect Choir
12486	Space Elevator
12487	Midnight Cowboy
12488	Start Grid
12489	Combating cancer
12490	Integral
12491	Words
12492	Rubik Cycle
12493	Stars
12494	Distinct Substring
12495	'C' for Count
12496	Fisherman's Dilemma
12497	Chatgaiya Postman Problem
12498	Ant's Shopping Mall
12499	I am Dumb 3