題目清單 11000 - 11999

110 - Volume CX
題號	標題	難度	參考解題方向	備註
11000	Bee	2.0	DP, Fibonacci number	lucky 貓
11001	Necklace			lucky 貓
11002	Towards Zero
11003	Boxes	2.5	DP, LIS (Like UVa 10154)	lucky 貓
11004	Changing Roadmap
11005	Cheapest Base	1.5	Base conversion, Ad hoc, Min max	lucky 貓
11006	Wheel Good
11007	Mini Cube
11008	Antimatter Ray Clearcutting
11009	Geometry Once Again
11010	Tic-Tac-Tough
11011	Numerical Methods! A Satire
11012	Cosmic Cabbages			lucky 貓
11013	Get Straight
11014	Make a Crystal
11015	05-2 Rendezvous			lucky 貓
11016	Square Counting
11017	A Greener World
11018	Mars Buggy
11019	Matrix Matcher
11020	Efficient Solutions
11021	Tribles
11022	String Factoring
11023	Multisets and Sequences			lucky 貓
11024	Circular Lock
11025	Mr. And Mrs. Hamilton
11026	A Grouping Problem
11027	Palindromic Permutation
11028	Sum of Product
11029	Leading and Trailing			lucky 貓
11030	Predator II
11031	Looking for a Subset
11032	Function Overloading	2.0	Brute force, Preprocessing
11033	Help my Brother			lucky 貓
11034	Ferry Loading IV
11035	Card Hands
11036	Eventually Periodic Sequence
11037	Point of View in Flatland
11038	How Many O's?			lucky 貓
11039	Building designing			lucky 貓
11040	Add bricks in the wall
11041	Quarter-Finals with Brazil!? No!!!
11042	Complex, difficult and complicated
11043	Fast and Easy Data Compressor
11044	Searching for Nessy	1.0	Ad hoc, Math	ruby 兔
11045	My T-shirt suits me			lucky 貓
11046	Numbers and operations
11047	The Scrooge Co Problem
11048	Automatic Correction of Misspellings
11049	Basic wall maze
11050	Construct the wall maze
11051	Dihedral groups
11052	Economic phone calls
11053	Flavius Josephus Reloaded
11054	Wine trading in Gergovia
11055	Homogeneous squares			ruby 兔
11056	Formula 1
11057	Exact Sum
11058	Encoding
11059	Maximum Product			lucky 貓
11060	Beverages
11061	Playing War
11062	Andy's Second Dictionary
11063	B2-Sequence	1.5	Ad hoc
11064	Number Theory
11065	A Gentlemen's Agreement
11066	Aragorn
11067	Little Red Riding Hood
11068	An Easy Task
11069	A Graph Problem	2.0	DP, Linear DP	lucky 貓
11070	The Good Old Times			lucky 貓
11071	Permutation Representation
11072	Points
11073	Euler's Totient Function
11074	Draw Grid
11075	Collage
11076	Add Again
11077	Find the Permutations
11078	Open Credit System
11079	What's the Time?
11080	Place the Guards
11081	Strings	3.0	DP, String DP, Modular arithmatic	lucky 貓
11082	Matrix Decompressing
11083	Zeroes Revisited
11084	Anagram Division			lucky 貓
11085	Back to the 8-Queens			lucky 貓
11086	Composite Prime
11087	Divisibility Testing
11088	End up with More Teams
11089	Fi-binary Number
11090	Going in Cycle!!
11091	How many Knight Placing?			lucky 貓
11092	IIUC HexWorld
11093	Just Finish it up
11094	Continents
11095	Tabriz City
11096	Nails
11097	Poor My Problem! :-(
11098	Battle II
11099	Next Same-Factored
111 - Volume CXI
題號	標題	難度	參考解題方向	備註
11100	The Trip, 2007
11101	Mall Mania
11102	Moonshine
11103	WFF 'N PROOF
11104	Cousins
11105	Semi-prime H-numbers
11106	Rectilinear Polygon
11107	Life Forms
11108	Tautology
11109	Rinse
11110	Equidivisions
11111	Generalized Matrioshkas
11112	Babylonian Roulette
11113	Continuous Fractions
11114	Polygon Encoder
11115	Uncle Jack			ruby 兔
11116	Babel Towers
11117	Little Quilt
11118	Prisoners, Boxes and Pieces of Paper
11119	Chemical Attraction
11120	Very Funny Mr. Feynman
11121	Base -2			lucky 貓
11122	Tri Tri
11123	Counting Trapizoid
11124	Troubles for Modern Days Problemsetters
11125	Arrange Some Marbles
11126	Relaxed Golf
11127	Triple-Free Binary Strings			lucky 貓
11128	Faulty Computer
11129	An antiarithmetic permutation			lucky 貓
11130	Billiard bounces
11131	Close Relatives
11132	Dice from pennies
11133	Eigensequence
11134	Fabled Rooks
11135	Gopher that walks and swims
11136	Hoax or what
11137	Ingenuous Cubrency	2.5	DP, Coin change	ruby 兔
11138	Nuts and Bolts			lucky 貓
11139	Counting Quadrilaterals
11140	Little Ali's Little Brother!
11141	Sugar Cubes
11142	MineSweeper II
11143	Subtitles
11144	S.O.S.
11145	AvreniM
11146	Insurrection
11147	KuPellaKeS BST
11148	Moliu Fractions
11149	Power of Matrix
11150	Cola	1.0	Ad hoc, Math, Cola	lucky 貓
11151	Longest Palindrome	2.5	DP, LCS, Palindrome	ruby 兔
11152	Colourful Flowers			ruby 兔
11153	Museums
11154	An Octal World
11155	Be Efficient
11156	Continuous Drawing
11157	Dynamic Frog
11158	Elegant Permuted Sum
11159	Factors and Multiples
11160	Going Together
11161	Help My Brother (II)
11162	Independent Attacking Zones
11163	Jaguar King
11164	Kindgom Division
11165	Galactic Travel
11166	Power Signs
11167	Monkeys in the Emei Mountain
11168	Airport
11169	Deal or No Deal
11170	Cos(NA)
11171	SMS
11172	Relational Operator	1.0	Ad hoc, Comparison operation	lucky 貓
11173	Grey Codes
11174	Stand in a Line
11175	From D to E and Back
11176	Winning Streak
11177	Fighting Against a Polygonal Monster
11178	Morley's Theorem
11179	Bit Stream
11180	Base i-1
11181	Probability|Given
11182	Zeroes III
11183	Teen Girl Squad			lucky 貓
11184	Joyful Ride
11185	Ternary	1.5	Base conversion, Ad hoc	lucky 貓
11186	Circum Triangle
11187	Water Crisis			lucky 貓
11188	A Strange Opera House
11189	A Simple Pendulum
11190	Series of Powers
11191	Square
11192	Group Reverse	1.0	Ad hoc, String, Reverse	ruby 兔
11193	Infinix
11194	Stone Grid
11195	Another n-Queen Problem			lucky 貓
11196	Birthday Cake
11197	Counting RNA sequences
11198	Dancing Digits			lucky 貓
11199	Equations in Disguise
112 - Volume CXII
題號	標題	難度	參考解題方向	備註
11200	Sapitaur's labyrinth
11201	The problem of the crazy linguist
11202	The least possible effort			ruby 兔
11203	Can you decide it for ME?
11204	Musical instruments			lucky 貓
11205	The broken pedometer
11206	Coloring the map, but not anyhow
11207	The easiest way			ruby 兔
11208	Airplane Scheduling
11209	Be Together Again and Forever
11210	Chinese Mahjong			lucky 貓
11211	Digital Logic
11212	Editing a Book
11213	Flipull
11214	Guarding the Chessboard
11215	How Many Numbers?
11216	Irrigation
11217	Jewel Magnetizer
11218	KTV			ruby 兔
11219	How old are you?	1.5	Ad hoc, Date problem	lucky 貓
11220	Decoding the message.			ruby 兔
11221	Magic square palindromes.			ruby 兔
11222	Only I did it!			ruby 兔
11223	O: dah dah dah!			lucky 貓
11224	Let's swim!
11225	Tarot scores.
11226	Reaching the fix-point.			ruby 兔
11227	The silver bullet.			ruby 兔
11228	Transportation system.
11229	Improved tic-tac-toe.
11230	Annoying painting tool
11231	Black and white painting			ruby 兔
11232	Cylinder
11233	Deli Deli	1.5	Ad hoc, String, Dictionary	lucky 貓
11234	Expressions
11235	Frequent values			lucky 貓
11236	Grocery store			ruby 兔
11237	Halloween treats			lucky 貓
11238	Innoumerous bowling games
11239	Open Source			ruby 兔
11240	Antimonotonicity			ruby 兔
11241	Humidex
11242	Tour de France
11243	Texas Trip
11244	Counting Stars			ruby 兔
11245	Anti-Arithmetic-Sequence
11246	K-Multiple Free set			ruby 兔
11247	Income Tax			lucky 貓
11248	Frequency Hopping
11249	Game
11250	Working with Small Numbers
11251	Fractions
11252	Take Me Home (To the Place I Belong)
11253	Fractal
11254	Consecutive Integers			lucky 貓
11255	Necklace
11256	Repetitive Multiple
11257	New Marketing Plan
11258	String Partition			ruby 兔
11259	Coin Changing Again
11260	Odd Root Sum
11261	Bishops
11262	Weird Fence
11263	Nested Rectangles
11264	Coin Collector			ruby 兔
11265	The Sultan's Problem
11266	Equations
11267	The Hire-a-Coder Business Model
11268	Reliable Network
11269	Setting Problems
11270	Tiling Dominoes
11271	Lattice of Resistors
11272	Summing the Lengths of the Longest Increasing Subsequence of Permutations
11273	Warping N Dimensional Space
11274	Infinite Resistor Network
11275	3D Triangles
11276	Magical Seven
11277	Cyclic Polygons
11278	One-Handed Typist
11279	Keyboard Comparison
11280	Flying to Fredericton
11281	Triangular Pegs in Round Holes
11282	Mixing Invitations
11283	Playing Boggle
11284	Shopping Trip
11285	Exchange Rates
11286	Conformity			lucky 貓
11287	Pseudoprime Numbers			ruby 兔
11288	Carpool
11289	Friend or Foe?
11290	Gangs
11291	Smeech
11292	Dragon of Loowater
11293	Tournament
11294	Wedding
11295	Anti Monotonicity Revisited
11296	Counting Solutions to an Integral Equation			lucky 貓
11297	Census
11298	Dissecting a Hexagon
11299	Separating Rods
113 - Volume CXIII
題號	標題	難度	參考解題方向	備註
11300	Spreading the Wealth			lucky 貓
11301	Great Wall of China
11302	Hexadecimal Digits of an Integral
11303	Permutations
11304	Difussing Nuclear Bombs on Planet X
11305	Chess on Planet X
11306	Optimal Marriage on Planet X
11307	Alternative Arborescence
11308	Bankrupt Baker
11309	Counting Chaos			lucky 貓
11310	Delivery Debacle	2.0	DP, Linear DP	lucky 貓
11311	Exclusively Edible
11312	Flipping Frustration
11313	Gourmet Games	1.0	Cola, Simulation, Ad hoc
11314	Hardly Hard
11315	Attacker
11316	Prime Frog
11317	GCD+LCM
11318	Marble Game
11319	Stupid Sequence
11320	Hidden Triangles
11321	Sort! Sort!! and Sort!!!			ruby 兔
11322	Romeo and Juliet
11323	Satisfying Constraints
11324	The Largest Clique
11325	This Means War!
11326	Laser Pointer
11327	Enumerating Rational Numbers
11328	Drawing Straws at the Office
11329	Curious Fleas
11330	Andy's Shoes
11331	The Joys of Farming
11332	Summing Digits			lucky 貓
11333	Alphametics
11334	Antenna in the Cinoc Mountains
11335	Discrete Pursuit
11336	DRM
11337	Greatest Hits!
11338	Minefield
11339	Sonnet Rhyme Verifier
11340	Newspaper			ruby 兔
11341	Term Strategy
11342	Three-square	1.0	Brute force
11343	Isolated Segments
11344	The Huge One
11345	Rectangles
11346	Probability
11347	Multifactorials
11348	Exhibition
11349	Symmetric Matrix
11350	Stern-Brocot Tree
11351	Last Man Standing			lucky 貓
11352	Crazy King			lucky 貓
11353	A Different Kind of Sorting
11354	Bond
11355	Cool Points
11356	Dates			lucky 貓
11357	Ensuring Truth
11358	Faster Processing Feasibility
11359	Guards, Imbecile Guards
11360	Have Fun with Matrices			lucky 貓
11361	Investigating Div-Sum Property
11362	Phone List
11363	Cuckoo Hashing
11364	Parking			lucky 貓
11365	Copying DNA
11366	Circle of Debt
11367	Full Tank?
11368	Nested Dolls
11369	Shopaholic			lucky 貓
11370	Moogle
11371	Number Theory for Newbies			lucky 貓
11372	Arranging a Contest
11373	Happy Birthday
11374	Airport Express
11375	Matches
11376	Tilt!
11377	Airport Setup
11378	Bey Battle
11379	Chichi's Home Work
11380	Down Went The Titanic
11381	Elegant Strings
11382	Fear of The Dark
11383	Golden Tiger Claw
11384	Help is needed for Dexter			lucky 貓
11385	Da Vinci Code			ruby 兔
11386	Triples
11387	The 3-Regular Graph
11388	GCD LCM			ruby 兔
11389	The Bus Driver Problem
11390	The Sultan's Feast
11391	Blobs in the Board
11392	Binary*3 Type Multiple
11393	Tri-Isomorphism
11394	Digit Blocks
11395	Sigma Function
11396	Claw Decomposition
11397	Reconstructing Binary Forests
11398	The Base-1 Number System			lucky 貓
11399	What be thy Name, O Dear Tree?
114 - Volume CXIV
題號	標題	難度	參考解題方向	備註
11400	Lighting System Design
11401	Triangle Counting			lucky 貓
11402	Ahoy, Pirates!
11403	Binary Multiplication
11404	Palindromic Subsequence
11405	Can U Win?
11406	Best Trap
11407	Squares			lucky 貓
11408	Count DePrimes
11409	Ball Passing
11410	LAEncoding
11411	MiniMice
11412	Dig the Holes
11413	Fill the Containers
11414	Dream
11415	Count the Factorials
11416	Excel Evaluation
11417	GCD			ruby 兔
11418	Clever Naming Patterns	3.0	Graph theory, Maximum cardinality bipartite matching
11419	SAM I AM
11420	Chest of Drawers
11421	Arranging Cards
11422	Escaping from Fractal Bacterium
11423	Cache Simulator
11424	GCD - Extreme
11425	Collecting Luggage EXTREME!!!
11426	GCD - Extreme (II)
11427	Expect the Expected
11428	Cubes			lucky 貓
11429	Randomness
11430	ETS Problem setting
11431	Partitioning a Number
11432	Busy Programmer
11433	The Dicey Dice
11434	Careless Postman Problem
11435	Network EXTREME!!!
11436	Cubes - EXTREME!!!			lucky 貓
11437	Triangle Fun
11438	Integer Transmission EXTREME
11439	Maximizing the ICPC
11440	Help Tomisu
11441	Encoding/Decoding
11442	Linear Diophantine Tidbits
11443	Tree in a Grid
11444	Sum
11445	Water Tanks EXTREME
11446	Where is the 'back' button?
11447	Reservoir logs
11448	Who said crisis?
11449	Go Alonso go!
11450	Wedding shopping			lucky 貓
11451	Water restrictions
11452	Dancing the Cheeky-Cheeky
11453	Traveling fishmonger
11454	Very well informed domino player
11455	Behold my quadrangle			ruby 兔
11456	Trainsorting	2.5	DP, LIS, LDS	lucky 貓
11457	Classified
11458	Hot Spot
11459	Snakes and Ladders
11460	Balance
11461	Square Numbers			ruby 兔
11462	Age Sort			lucky 貓
11463	Commandos
11464	Even Parity			lucky 貓
11465	Count the Polygons
11466	Largest Prime Divisor
11467	Pythagorean Triangles
11468	Substring
11469	Treasure Hunt
11470	Square Sums			ruby 兔
11471	Arrange the Tiles
11472	Beautiful Numbers
11473	Campus Roads
11474	Dying Tree
11475	Extend to Palindrome
11476	Factorizing Larget Integers
11477	Game of Rectangles
11478	Halum
11479	Is this the easiest problem?			lucky 貓
11480	Jimmy's Balls			lucky 貓
11481	Arrange the Numbers
11482	Building a Triangular Museum
11483	Code Creator
11484	Document Object Model
11485	Extreme Discrete Summation
11486	Finding Paths in Grid
11487	Gathering Food
11488	Hyper Prefix Sets
11489	Integer Game
11490	Just Another Problem
11491	Erasing and Winning			lucky 貓
11492	Babel
11493	The Club Ballroom
11494	Queen			lucky 貓
11495	Bubbles and Buckets
11496	Musical Loop
11497	Set
11498	Division of Nlogonia			lucky 貓
11499	Longest Increasing Sequence
115 - Volume CXV
題號	標題	難度	參考解題方向	備註
11500	Vampires			ruby 兔
11501	Laurel Creek
11502	Rocket Stages
11503	Virtual Friends			lucky 貓
11504	Dominos	2.5	Strongly-connected-component, SCC, Connectivity, Stack	ruby 兔
11505	Logo			ruby 兔
11506	Angry Programmer
11507	Bender B. Rodr guez Problem			ruby 兔
11508	Life on Mars?			ruby 兔
11509	Touring Robot
11510	Erd s Unit Fractions
11511	Frieze Patterns
11512	GATTACA			ruby 兔
11513	9 Puzzle			ruby 兔
11514	Batman
11515	Cranes			ruby 兔
11516	WiFi			ruby 兔
11517	Exact Change	2.5	DP, Coin change	ruby 兔
11518	Dominos 2	2.0	DFS	ruby 兔
11519	Logo 2			ruby 兔
11520	Fill the Square			ruby 兔
11521	Compressor
11522	Pyramid Number
11523	Recycling
11524	InCircle			lucky 貓
11525	Permutation	1.5	Ad hoc, STL vector, Permutation	ruby 兔
11526	H(n)			lucky 貓
11527	Morning Walk
11528	Switch Grid
11529	Strange Tax Calculation
11530	SMS Typing			ruby 兔
11531	Solve the Broken Maze
11532	Simple Adjacency Maximization			ruby 兔
11533	Special Number
11534	Say Goodbye to Tic-Tac-Toe
11535	Set of Marbles
11536	Smallest Sub-Array			ruby 兔
11537	Secret Problemsetters' Union
11538	Chess Queen			ruby 兔
11539	Another Word Game
11540	Sultan's Chandelier
11541	Decoding			lucky 貓
11542	Square
11543	Two Points And Curious MumboJumbo
11544	Recruiter's Problem
11545	Avoiding Jungle in the Dark			ruby 兔
11546	Olympic Swimming
11547	Automatic Answer			ruby 兔
11548	Blackboard Bonanza
11549	Calculator Conundrum			ruby 兔
11550	Demanding Dilemma			ruby 兔
11551	Experienced Endeavour
11552	Fewest Flops
11553	Grid Game	1.5	Brute force, Game theory	ruby 兔
11554	Hapless Hedonism			ruby 兔
11555	Aspen Avenue
11556	Best Compression Ever
11557	Code Theft
11558	Dinner
11559	Event Planning			ruby 兔
11560	Fixing the Bugs
11561	Getting Gold	2.0	DFS, 2D map	ruby 兔
11562	Hard Evidence
11563	Introspective Caching
11564	Just A Few More Triangles!
11565	Simple Equations			lucky 貓
11566	Let's Yum Cha!
11567	Moliu Number Generator			ruby 兔
11568	Pincer Attack!!
11569	Lovely Hint			ruby 兔
11570	Sudoku without numbers?
11571	Simple Equations - Extreme!!			ruby 兔
11572	Unique Snowflakes			ruby 兔
11573	Ocean Currents
11574	Colliding Traffic
11575	Zerg Rush!!!
11576	Scrolling Sign			ruby 兔
11577	Letter Frequency			lucky 貓
11578	Situp Benches
11579	Triangle Trouble			lucky 貓
11580	Finding the Transmitter
11581	Grid Successors
11582	Colossal Fibonacci Numbers!			lucky 貓
11583	Alien DNA
11584	Partitioning by Palindromes	2.5	DP, LIS, Palindrome	ruby 兔
11585	Nurikabe
11586	Train Tracks	1.0	Ad-hoc	ruby 兔
11587	Brick Game
11588	Image Coding			ruby 兔
11589	Save the President
11590	Prefix Lookup
11591	Bulb Inside a Grid
11592	Bulb inside a Grid (II)
11593	Fractions
11594	All Pairs Maximum Flow
11595	Crossing Streets EXTREME
11596	Convex Orthogonal Polygon
11597	Spanning Subtree			ruby 兔
11598	Optimal Segments
11599	Triangle and Polynomial
116 - Volume CXVI
題號	標題	難度	參考解題方向	備註
11600	Masud Rana
11601	Avoiding Overlaps
11602	SMS for Blind
11603	Its all about the Bandwidth
11604	General Sultan
11605	Lights inside a 3d Grid
11606	Atoms
11607	Cutting Cakes
11608	No Problem			ruby 兔
11609	Teams
11610	Reverse Prime
11611	Colored Tiles
11612	Sultan and Khairun Shundori
11613	Acme Corporation
11614	Etruscan Warriors Never Play Chess			lucky 貓
11615	Family Tree
11616	Roman Numerals	1.5	String manipulation, Roman number	lucky 貓
11617	An Odd Love
11618	The Amazing Triangle Counting Machine
11619	SPAM! (or not)
11620	City of Egocentrics
11621	Small Factors			ruby 兔
11622	Le Compte est Bon
11623	Tic Tac Toe
11624	Fire!
11625	Nice Prefixes
11626	Convex Hull
11627	Slalom
11628	Another lottery			ruby 兔
11629	Ballot evaluation			ruby 兔
11630	Cyclic antimonotonic permutations
11631	Dark roads	2.5	MST, Minimum spanning tree	ruby 兔
11632	Elias gamma coding
11633	Food portion sizes
11634	Generate random numbers			ruby 兔
11635	Hotel booking
11636	Hello World!			ruby 兔
11637	Garbage Remembering Exam
11638	Temperature Monitoring
11639	Guard the Land			ruby 兔
11640	Mayor Election
11641	Looking for a New Place
11642	Bangladesh Premier League
11643	Knight Tour
11644	Pyragrid
11645	Bits
11646	Athletics Track
11647	Judgment Day
11648	Divide The Land
11649	Home! Sweet Home!
11650	Mirror Clock			ruby 兔
11651	Krypton Number System
11652	Power Faster
11653	Stick Makes Gold
11654	Arithmetic Subsequence
11655	Waterland
11656	Message in the Enemy Territory
11657	Rational Billiard
11658	Best Coalitions
11659	Informants
11660	Look-and-Say sequences
11661	Burger Time?			lucky 貓
11662	Triangular Grid
11663	GrayInc
11664	Langton's Ant
11665	Chinese Ink
11666	Logarithms
11667	Income Tax Hazard II
11668	How Many Teams
11669	Non Decreasing Prime Sequence
11670	Physics Experiment
11671	Sign of Matrix
11672	Dynamic Summation
11673	Enemy at the Gateway
11674	In-Ellipse
11675	Happy Friends
11676	Deadly Attack
11677	Alarm Clock			ruby 兔
11678	Cards' Exchange
11679	Sub-prime
11680	Dragster
11681	Tower for Cellular Telephony
11682	Shift Register
11683	Laser Sculpture
11684	MC part deux
11685	Moveable maze
11686	Pick up sticks
11687	Digits			lucky 貓
11688	Rotate to root
11689	Soda Surpler	1.0	Ad-hoc, Cola	lucky 貓
11690	Money Matters
11691	Allergy Test
11692	Rain Fall
11693	Speedy Escape
11694	Gokigen Naname
11695	Flight Planning
11696	Beacons
11697	Playfair Cipher
11698	Code Permutations
11699	Rooks
117 - Volume CXVII
題號	標題	難度	參考解題方向	備註
11700	Pipes
11701	Cantor
11702	Meltdown
11703	sqrt log sin			ruby 兔
11704	Caper pizza
11705	Grasshopper
11706	Party Night
11707	Pachinko
11708	Lexicographical ranking
11709	Trust groups	2.5	Strongly connected component, SCC, Connnectivity
11710	Expensive subway
11711	Turing
11712	Gnirut
11713	Abstract Names	1.5	Ad hoc, String manipulation	ruby 兔
11714	Blind Sorting			lucky 貓
11715	Car			ruby 兔
11716	Digital Fortress			ruby 兔
11717	Energy Saving Microcontroller
11718	Fantasy of a Summation
11719	Gridland Airports
11720	How Many Ways
11721	Instant View of Big Bang
11722	Joining with Friend
11723	Numbering Roads			ruby 兔
11724	Evaluate the Expression
11725	Colorful Board
11726	Crime Scene
11727	Cost Cutting			ruby 兔
11728	Alternate Task			lucky 貓
11729	Commando War
11730	Number Transformation			lucky 貓
11731	Ex-circles
11732	strcmp() Anyone?
11733	Airports
11734	Big Number of Teams will Solve This			ruby 兔
11735	Corner the Queens
11736	Debugging RAM
11737	Extreme Primitive Society
11738	Few Teams will Solve this
11739	Giving Candies
11740	How Dark Can it Be?
11741	Ignore the Blocks
11742	Social Constraints
11743	Credit Check			lucky 貓
11744	Parallel Carry Adder
11745	Slitherlin
11746	Finding the Transmitter Again
11747	Heavy Cycle Edges
11748	Rigging Elections
11749	Poor Trade Advisor
11750	Red-Blue Tree
11751	Installing Diagnostic Software
11752	The Super Powers
11753	Creating Palindrome
11754	Code Feat
11755	Table Tennis
11756	Bounded by Lines
11757	Winger Trial
11758	Left Right
11759	IBM Fencing
11760	Brother Arif, Please feed us!
11761	Super Heronian Triangle
11762	Race to 1
11763	Hats Off
11764	Jumping Mario	1.0	Ad hoc, Loop	lucky 貓
11765	Component Placement
11766	Racing Car Computer
11767	World of Knots
11768	Lattice Point or Not
11769	All Souls Night
11770	Lighting Away	2.5	Strongly connected component, SCC, Connnectivity
11771	Dhaka Bots
11772	A Bee Love Story
11773	King's Wish
11774	Doom's Day
11775	Unique Story
11776	Oh Your Royal Greediness!
11777	Automate the Grades			ruby 兔
11778	Graph Coloring in HSL
11779	Lost File
11780	Miles 2 Km
11781	Books
11782	Optimal Cut
11783	Nails
11784	Escape
11785	Hypercube
11786	Global Raining at Bididibus
11787	Numeral Hieroglyphs
11788	The League Will Be Decided Tomorrow!
11789	Texas Hold'em Poker Solitaire
11790	Murcia's Skyline
11791	Looking for a Good Plot
11792	Krochanska is Here!
11793	Electoral Districts
11794	Dazzling Puzzle
11795	Mega Man's Mission
11796	Dog Distance
11797	Drutojan Express
11798	Colorful Board 2
11799	Horror Dash			ruby 兔
118 - Volume CXVIII
題號	標題	難度	參考解題方向	備註
11800	Determine the Shape
11801	A Problemsetter Blind with Emotion
11802	All Your Bases Belong to Us
11803	The Great Merger
11804	Argentina			ruby 兔
11805	Bafana Bafana			ruby 兔
11806	Cheerleaders
11807	Dumb Eucelics' Pyramid Walk
11808	Ensuring Victory
11809	Floating-Point Numbers
11810	Gentle ping, to the old King			ruby 兔
11811	Hello, Mafia
11812	Innovative Procession Management
11813	Shopping
11814	Stack Machine
11815	Ideas
11816	HST
11817	Tunnelling the Earth
11818	Mouse & a Cheese			lucky 貓
11819	Bisectors
11820	Warp Speed
11821	High-Precision Number
11822	Configurations
11823	Two Longest Paths
11824	A Minimum Land Price			ruby 兔
11825	Hackers' Crackdown
11826	Shuffle
11827	Maximum GCD			ruby 兔
11828	Palindrome Again
11829	L's in a Circle
11830	Contract Revision			ruby 兔
11831	Sticker Collector Robot			ruby 兔
11832	Account Book
11833	Route Change
11834	Elevator			ruby 兔
11835	Formula 1
11836	Star War
11837	Musical Plagiarism
11838	Come and Go			lucky 貓
11839	Optical Reader			ruby 兔
11840	Tic-tac-toe
11841	Y-game
11842	Flatland
11843	Guessing Game
11844	The Melding Plague
11845	Preferential Romance
11846	Finding Seats Again
11847	Cut The Silver Bar
11848	Cargo Trains
11849	CD			ruby 兔
11850	Alaska			ruby 兔
11851	Celebrity Split
11852	Knight's Trip
11853	Paintball
11854	Egypt			ruby 兔
11855	Buzzwords
11856	Ferry Loading V
11857	Driving Range
11858	Frosh Week
11859	Division Game
11860	Document Analyzer
11861	Explosion
11862	Airbus vs Boeing
11863	Prime Game
11864	Probability Calculation
11865	Stream My Contest
11866	Triangle
11867	Politeness
11868	Game of Blocks
11869	SOAP Response
11870	Antonyms
11871	New Land
11872	Where to Run
11873	Gift Packing
11874	Travel Company
11875	Brick Game			lucky 貓
11876	N + NOD (N)	1.5	Ad hoc, Binary Search, STL Upper Bound	lucky 貓
11877	The Coco-Cola Store	1.0	Cola, Ad hoc, Math	ruby 兔
11878	Homework Checker	1.5	String Manipulation, Parse	ruby 兔
11879	Multiple of 17			lucky 貓
11880	Ball in a Rectangle
11881	Internal Rate of Return
11882	Biggest Number
11883	Repairing a Road
11884	A Shooting Game
11885	Number of Battlefields
11886	Infinite Dictionaries
11887	Tetrahedrons and Spheres
11888	Abnormal 89's
11889	Benefit			ruby 兔
11890	Calculus Simplified
11891	Deep in Jungles
11892	ENimEN
11893	Fabulous DAGy
11894	Genius MJ
11895	Honorary Tickets
11896	Inglorious Gangs
11897	Jingling Dominoes
11898	Killer Problem
11899	Writing the Whole pi
119 - Volume CXIX
題號	標題	難度	參考解題方向	備註
11900	Boiled Eggs			ruby 兔
11901	Ellipse Hazard
11902	Dominator			ruby 兔
11903	e-Friends
11904	One Unit Machine
11905	Map Coloring
11906	Knight in a War Grid
11907	Collision of Bacteria
11908	Skyscraper			ruby 兔
11909	Soya Milk			lucky 貓
11910	Closest Fractions
11911	Farther or Closer
11912	Chutes and Ladders
11913	Tape Recording
11914	An Amazing Race			ruby 兔
11915	Recurrence
11916	Emoogle Grid
11917	Do Your Own Homework			ruby 兔
11918	Traveler of Gridland
11919	Hybrid Salientia
11920	0 s, 1 s and ? Marks			ruby 兔
11921	Save the Princess
11922	Permutation Transformer			ruby 兔
11923	Roundabout
11924	Unlock the Winning Pot
11925	Generating Permutations			ruby 兔
11926	Multitasking			ruby 兔
11927	Games Are Important
11928	The Busy Dog
11929	Ambiguous Forests
11930	Rectangles
11931	Maze Escape
11932	Net Profit
11933	Splitting Numbers			ruby 兔
11934	Magic Formula			ruby 兔
11935	Through the Desert			ruby 兔
11936	The Lazy Lumberjacks	1.0	Ad hoc, Triangle	lucky 貓
11937	Balanced ScoreCard
11938	Granny Pie Factory
11939	Landing Navigation
11940	Face the Maze
11941	Creating a Quadtree
11942	Lumberjack Sequencing	1.0	Ad hoc, Comparison operation	lucky 貓
11943	The heart flu
11944	$ 10 to Win?
11945	Financial Management			ruby 兔
11946	Code Number			lucky 貓
11947	Cancer or Scorpio			lucky 貓
11948	Reading a Quadtree
11949	Calculating IRR			ruby 兔
11950	Neverland
11951	Area
11952	Arithmetic			ruby 兔
11953	Battleships			ruby 兔
11954	Binary Calculator
11955	Binomial Theorem			lucky 貓
11956	Brainfuck			lucky 貓
11957	Checkers			lucky 貓
11958	Coming Home			ruby 兔
11959	Dice			lucky 貓
11960	Divisor Game			lucky 貓
11961	DNA			ruby 兔
11962	DNA II			ruby 兔
11963	Emigration
11964	Equation
11965	Extra Spaces			ruby 兔
11966	Galactic Bonding			ruby 兔
11967	Hic-Hac-Hoe
11968	In The Airport			ruby 兔
11969	LAMApbo
11970	Lucky Numbers			ruby 兔
11971	Polygon
11972	Round Trip
11973	Sierpinski Carpet
11974	Switch The Lights
11975	Tele-loto
11976	Time Deposit
11977	Story of Tomisu Ghost			ruby 兔
11978	Fukushima Nuclear Blast
11979	Hamming Base			ruby 兔
11980	Mad Scientist
11981	Corrupted Friendship
11982	Fantasy Cricket
11983	Weird Advertisement
11984	A Change in Thermal Unit	1.0	Ad hoc, Math	lucky 貓
11985	Prime Independence
11986	Save from Radiation			lucky 貓
11987	Almost Union-Find			lucky 貓
11988	Broken Keyboard (a.k.a. Beiju Text)			lucky 貓
11989	Cake Cutting
11990	``Dynamic'' Inversion
11991	Easy Problem from Rujia Liu?			lucky 貓
11992	Fast Matrix Operations
11993	Girls' Celebration
11994	Happy Painting!
11995	I Can Guess the Data Structure!			lucky 貓
11996	Jewel Magic
11997	K Smallest Sums			lucky 貓
11998	Rujia Liu loves Wario Land!
11999	Unlock