Name	Difficulty	Efficiency
Life, the Universe, and Everything	24%	1%
Prime Generator	68%	51%
Substring Check (Bug Funny)	75%	10%
Transform the Expression	12%	1%
The Next Palindrome	61%	29%
Simple Arithmetics	46%	12%
The Bulk!	24%	11%
Complete the Sequence!	26%	16%
Direct Visibility	37%	21%
Complicated Expressions	33%	11%
Factorial	18%	9%
The Game of Master-Mind	25%	15%
Hotline	16%	0%
I-Keyboard	18%	7%
The Shortest Path	48%	38%
Sphere in a tetrahedron	7%	0%
The Bytelandian Cryptographer (Act I)	26%	5%
The Bytelandian Cryptographer (Act II)	26%	5%
The Bytelandian Cryptographer (Act III)	18%	4%
The Bytelandian Cryptographer (Act IV)	78%	52%
Triangle From Centroid	17%	2%
Pyramids	18%	0%
Small factorials	31%	1%
Pouring water	48%	17%
Build the Fence	26%	14%
Sorting Bank Accounts	44%	36%
Help the Military Recruitment Office!	50%	29%
Hash it!	28%	2%
Bytelandian Blingors Network	19%	9%
Fast Multiplication	86%	63%
A Needle in the Haystack	26%	16%
Trip	38%	28%
Run Away	25%	7%
Equipment Box	54%	3%
Secret Code	27%	9%
The Proper Key	23%	4%
Labyrinth	23%	13%
Piggy-Bank	20%	8%
Lifting the Stone	40%	1%
Play on Words	42%	13%
Adding Reversed Numbers	11%	1%
Copying Books	30%	7%
Substitution Cipher	33%	11%
Commedia dell Arte	12%	1%
Skyscraper Floors	38%	26%
Glass Beads	16%	10%
Hares and Foxes	53%	10%
Invitation Cards	16%	7%
Fake tournament	33%	20%
Julka	29%	1%
Jasiek	33%	8%
Dyzio	22%	2%
Supernumbers in a permutation	23%	12%
Crime at Piccadily Circus	40%	10%
Bytelandian Information Agency	55%	26%
The Gordian Dance	32%	15%
Brackets	45%	36%
The Imp	29%	9%
Square Brackets	11%	6%
Permutations	12%	3%
Ball	24%	11%
Cross-country	8%	2%
Cutting out	7%	3%
Expression	18%	7%
Moulds	9%	2%
Relations	11%	3%
Tree	27%	5%
Bacterial	28%	21%
Divisor Summation	48%	42%
Editor	25%	20%
Editor Inverse	18%	6%
New bricks disorder	10%	4%
Marbles	24%	13%
Easy Problem	22%	0%
Bundling	33%	7%
Shortcut	19%	5%
Dice Contest	32%	2%
November Rain	33%	15%
Football	27%	0%
Which is Next	17%	5%
Hang or not to hang	15%	5%
Minimizing maximizer	25%	9%
Two squares or not two squares	46%	36%
Cutting off Squares	12%	2%
Numeral System of the Maya	12%	4%
Street Parade	19%	2%
Shopping	10%	5%
Party Schedule	16%	3%
Dance Floor	13%	0%
Bus	20%	5%
Tower of Babylon	6%	2%
Fishmonger	10%	2%
GX Light Pipeline Inc	18%	1%
Highways	24%	11%
Alice and Bob	22%	14%
Binary Stirling Numbers	27%	4%
Calendar of the Maya	10%	0%
Decoding Morse Sequences	24%	12%
Exchanges	12%	0%
Fill the Cisterns	15%	5%
Horizontally Visible Segments	21%	6%
Family	33%	14%
Intervals	23%	11%
Rhombs	11%	5%
Servers	47%	29%
Solitaire	24%	15%
Timetable	25%	7%
Voracious Steve	26%	4%
Paying in Byteland	18%	3%
Rent your airplane and make money	21%	14%
Square dance	8%	5%
Help R2-D2!	27%	14%
Phony Primes	45%	39%
Men at work	6%	2%
Transformation	11%	10%
Partition	17%	10%
Election Posters	29%	13%
The Long and Narrow Maze	28%	12%
The Loner	41%	12%
Johnny and the Glue	14%	1%
Aliens	29%	16%
Fast Multiplication Again	47%	23%
Tautology	16%	8%
Land for Motorways	8%	3%
Fencing in the Sheep	41%	15%
Where to Drink the Plonk?	24%	14%
The Courier	7%	1%
Balancing the Stone	13%	2%
Sweet and Sour Rock	12%	2%
Choosing a Palindromic Sequence	21%	9%
Paint templates	9%	1%
Polygon	20%	5%
Sum of one-sequence	18%	4%
AB-words	95%	39%
Road net	11%	4%
Word equations	16%	5%
How to pack containers	9%	4%
Scuba diver	17%	7%
Window	11%	0%
Assembler circuits	20%	6%
Automatic Teller Machines	25%	17%
Chase	7%	0%
The lightest language	26%	8%
Flat broken lines	10%	8%
Rectangles	32%	26%
Musketeers	22%	6%
Empty Cuboids	12%	4%
Monodigital Representations	16%	6%
The Game of Polygons	9%	1%
Rockets	51%	44%
Potholers	19%	7%
Sleepwalker	16%	1%
Icerink	65%	14%
Bitmap	27%	18%
Three-coloring of binary trees	12%	3%
Store-keeper	40%	27%
The Map	11%	1%
The Altars	29%	23%
Primitivus recurencis	29%	9%
Water among Cubes	29%	11%
Panic in the Plazas	32%	16%
Soldiers on Parade	19%	3%
Relevant Phrases of Annihilation	25%	14%
Vonny and her dominos	11%	8%
Jewelry and Fashion	35%	30%
Ordering the Soldiers	38%	24%
Shamans	30%	20%
Sorting is easy	45%	36%
The Zebra Crossing	80%	13%
Getting Rid of the Holidays (Act I)	37%	24%
Very Fast Multiplication	81%	65%
Converting number formats	18%	0%
Sums in a Triangle	22%	16%
Getting Rid of the Holidays (Act II)	33%	23%
Tour de Byteland	23%	3%
Arranging the Blocks	36%	14%
Stable Marriage Problem	11%	4%
Square Root	52%	24%
Chocolate	13%	2%
Containers	8%	1%
Triangle Partitioning	6%	0%
Connections	27%	23%
Period	17%	11%
Corporative Network	14%	13%
Cave Exploration	30%	23%
Johnny and the Watermelon Plantation	23%	16%
The Water Ringroad	73%	27%
City Game	16%	6%
Bicycle	30%	1%
Interesting number	47%	46%
Lifts	30%	16%
Muddy Fields	22%	2%
Naptime	20%	6%
Selfish Cities	13%	9%
Smart Network Administrator	25%	24%
Prime or Not	64%	43%
Polynomial Equations	30%	14%
Cube Root	40%	10%
Alibaba	32%	19%
Officers on the Beat	50%	18%
Teamwork is Crucial	21%	8%
Aggressive cows	12%	6%
Cable TV Network	11%	4%
Booklets	10%	1%
Count on Cantor	7%	1%
The Unstable Cube	15%	0%
The Room Pattern	30%	28%
Pythagorean Legacy	26%	19%
The Tall Windmills	22%	2%
Platon and Socrates	50%	16%
Bishops	22%	4%
Calls	33%	27%
Hard Question	21%	0%
The Philosophical Dispute	17%	6%
Exchange Operations	33%	21%
Roads	18%	8%
Recursive Sequence	12%	6%
Poker	9%	0%
Mixtures	14%	2%
Bytelandian gold coins	22%	9%
Lazy Cows	24%	8%
Expedition	17%	3%
Around the world	18%	2%
Landscaping	16%	5%
Ha-noi!	14%	5%
Alpha Centauri Tennis	11%	4%
Ignore the Garbage	23%	13%
Pocket Money	30%	3%
Phidias	8%	6%
Farmer	29%	16%
Empodia	21%	9%
Cobbled streets	10%	2%
Math I	25%	13%
Ones and zeros	40%	31%
Boxes	25%	12%
The Benefactor	14%	6%
Greedy island	33%	18%
Count maximum matrices	29%	13%
Query on a tree	32%	24%
A concrete simulation	20%	10%
Taxi	16%	8%
Ambiguous Permutations	7%	3%
Bullshit Bingo	14%	2%
106 miles to Chicago	8%	2%
Decorate the wall	13%	4%
European railroad tracks	16%	5%
Any fool can do it	25%	12%
Game schedule required	20%	5%
Help the problem setter	20%	0%
Travelling tours	9%	6%
Menu	17%	6%
Use of Hospital Facilities	37%	2%
Billiard	6%	0%
Railroads	20%	10%
Spin	26%	3%
Hexagon	14%	2%
Alphacode	19%	7%
Anti-prime Sequences	11%	3%
Hit or Miss	9%	2%
I Conduit	37%	19%
Roll Playing Games	38%	5%
Team Rankings	7%	0%
To and Fro	7%	0%
Translations	19%	6%
Hike on a Graph	6%	2%
Sort fractions	36%	30%
Scanner	49%	25%
Tin Cutter	14%	2%
Logic	15%	9%
Random Number	25%	6%
Jill Rides Again	14%	2%
DEL Command	27%	1%
Variable Radix Huffman Encoding	21%	4%
Number of quite different words	18%	5%
K-path cover	37%	18%
Word Puzzles	42%	35%
Equatorial Bonfire	12%	1%
Divisibility by 15	37%	5%
The lazy programmer	35%	11%
Necklace	27%	10%
Transposing is Fun	13%	3%
Another Road Problem	24%	5%
Transposing is Even More Fun	21%	15%
Assignments	21%	19%
Kill evil instantly	81%	0%
Particular Palindromes	23%	17%
Simple Numbers with Fractions Conversion	30%	25%
Permutation generator	35%	21%
Roots of polynomial	37%	13%
Collatz	22%	13%
Zig-Zag Permutation	23%	11%
Divisors	23%	15%
Divisors 2	14%	9%
Increasing Subsequences	18%	2%
Dungeon of Death	17%	3%
Nail Them	11%	5%
String it out	16%	6%
Con-Junctions	8%	2%
Sorting is not easy	16%	9%
A place for the brewery	15%	5%
Building the Tower	38%	31%
Pairs of Integers	18%	4%
Another Assignment Problem	51%	50%
Partition the sequence	40%	24%
Repeats	21%	12%
Toy Cars	24%	13%
Lethal Warfare	15%	9%
Distinct Substrings	32%	26%
Unite Fast	10%	3%
Liar Liar	10%	0%
Matrix Words	16%	9%
Plane Hopping	15%	2%
Huge Knap Sack	14%	10%
Branch Prediction	19%	11%
Barn Expansion	21%	13%
Mobile Service	22%	11%
Remove The String	42%	20%
New Distinct Substrings	25%	20%
Triple-Free Sets	10%	6%
The day of the competitors	26%	12%
Promotion	27%	14%
Move your armies	28%	24%
Mountain Walking	25%	8%
Ivan and his interesting game	19%	11%
Minimum Diameter Spanning Tree	35%	5%
Another Counting Problem	8%	1%
The Moronic Cowmpouter	8%	1%
Treats for the Cows	27%	6%
Steady Cow Assignment	21%	13%
Longest Permutation	40%	18%
Thermal Luminescence	14%	6%
Convex Hull 3D	23%	11%
Delay-noise Analysis	19%	18%
The Archipelago	7%	0%
Trigonometric optimization	35%	17%
Optimal Marks	20%	10%
Soccer Choreography	100%	28%
Counting inversions	43%	40%
DNA Translation	26%	0%
Perfect Cubes	14%	4%
Galactic Import	7%	3%
Basically Speaking	10%	1%
Letter Sequence Analysis	15%	3%
Mark-up	28%	4%
Transmitters	8%	1%
Ws Cipher	8%	1%
Split Windows	11%	0%
Index Generation	18%	2%
Hangover	5%	0%
Double Vision	15%	0%
Image Perimeters	4%	0%
Submatrix of submatrix	23%	14%
Query on a tree II	19%	10%
Free Tour	71%	49%
Intergalactic Map	29%	10%
Entrapment	26%	9%
Parking Bay	12%	5%
Birthday	40%	6%
Mobile	36%	12%
Continuous Fractions	12%	1%
Generalized Matrioshkas	12%	2%
Equidivisions	26%	16%
Babylonian Roulette	7%	1%
Uncle Jack	27%	5%
Little Quilt	9%	2%
Polygon Encoder	43%	19%
Aibohphobia	21%	14%
Angels and Devils	21%	9%
Complete Chess Boards	5%	0%
Fashion Shows	11%	2%
Favorite Dice	5%	1%
Fool the Police	14%	3%
Hubulullu	6%	0%
Matrix Summation	45%	39%
Triple Fat Ladies	9%	1%
Up Subsequence	10%	5%
Can you answer these queries I	43%	32%
Card Trick	24%	16%
Sudoku	40%	22%
Number Steps	6%	0%
Tic-Tac-Toe ( I )	23%	1%
Tic-Tac-Toe ( II )	13%	1%
Java vs C ++	26%	4%
Dead Fraction	41%	8%
Move To Invert	33%	16%
Sorted bit squence	20%	14%
Accomodate the palace	14%	3%
Origin of Life	26%	12%
CN Tower (Easy)	18%	1%
CN Tower (Hard)	47%	3%
Paint By Numbers	32%	12%
Continuous Fractions Again	14%	2%
4 values whose sum is 0	32%	27%
Partial Sums	26%	16%
A Chase In WonderLand	59%	47%
Matrix	44%	36%
Maze	26%	8%
Summing to a Square Prime	6%	1%
University Employees	7%	0%
The Cats and the Mouse	10%	0%
A Game with Numbers	7%	1%
Geometry and a Square	10%	0%
Goods	18%	0%
Projections Of A Polygon	40%	13%
The Sum	45%	28%
Equation	30%	10%
Vertex Cover	21%	4%
Is it a tree	16%	5%
Longest path in a tree	13%	5%
Use of Function Arctan	44%	22%
The Clever Typist	73%	60%
Strange Food Chain	20%	12%
DEL Command II	20%	13%
A Game of Toy Bricks	3%	0%
3D Cover	27%	15%
01 Sequence	21%	12%
Birthday Cake	23%	18%
Optimal Connected Subset	10%	1%
Memory Distribution	23%	11%
Program Analyser	47%	42%
The Secret of a Lost City	29%	7%
Help Blue Mary Please! (Act I)	70%	40%
Help Blue Mary Please! (Act II)	32%	27%
The Secret of an Aerolite	10%	8%
A Simple Calculator in the Galaxy	36%	10%
Greedy Hydra	14%	7%
Barbarians	44%	36%
Robot Number M	2%	2%
Editor II	27%	19%
On the Way to Find Chris	17%	4%
Blue Mary Needs Help Again	29%	21%
Outside it is now raining	15%	0%
Another Sequence Problem	28%	16%
A Game of Pearls	7%	0%
Tom and Jerry	8%	2%
Lemon Tree in the Moonlight	17%	8%
VII - Act IV	19%	5%
Maximum Profit	31%	17%
Play with a Tree	33%	24%
The Easiest Problem	39%	22%
The GbAaY Kingdom	43%	5%
Let us count 1 2 3	45%	36%
A short vacation in Disneyland	34%	5%
Colorful Lights Party	54%	53%
Search in XML	79%	53%
Query on a tree III	48%	51%
Balloons of JiaJia	100%	20%
Whac-a-Mole	25%	9%
Ranklist Sorting	36%	9%
Help Blue Mary Please! (Act III)	24%	20%
Making Jumps	13%	3%
Mobiles	15%	3%
Backup Files	28%	10%
Zoo	19%	8%
Can you answer these queries II	29%	2%
Trees	53%	41%
Another Mathematical Problem	42%	25%
The Great Indian Wedding	16%	6%
Ambitious Manager	10%	4%
The Explosion	19%	5%
Fusion Cube	10%	0%
Text Generator	38%	39%
Halloween treats	13%	6%
Royal Treasury	36%	15%
Cylinder	13%	1%
Expressions	16%	8%
Frequent values	29%	22%
Grocery store	33%	31%
Logic II	29%	0%
A Very Easy Problem!	7%	0%
Hard Problem	29%	0%
Coconuts	14%	14%
Grandpa’s Rubik Cube	4%	0%
Will Indiana Jones Get There	10%	3%
Ohgas' Fortune	4%	0%
Polygonal Line Search	5%	0%
Numeral System	6%	0%
Traveling by Stagecoach	12%	15%
Earth Observation with a Mobile Robot Team	40%	0%
Cleaning Robot	10%	3%
ACM (ACronymMaker)	18%	10%
Countdown	11%	4%
The Game of Efil	18%	0%
Queens, Knights and Pawns	8%	2%
Reliable Nets	10%	5%
Square Count	21%	9%
Swamp Things	6%	4%
Two Ends	10%	4%
Permalex	29%	17%
Funny scales	8%	0%
Another Necklace Problem	38%	27%
Can you answer these queries III	11%	7%
Life, the Universe, and Everything II	20%	7%
Bee Maja	9%	1%
Counting Triangles	27%	13%
The Importance	4%	0%
Exchange	40%	32%
Common Permutation	9%	3%
Counting Triangles II	46%	12%
Counting Triangles III	35%	20%
Yet Another Equation	30%	8%
Tetris 3D	42%	31%
Evaluate the polynomial	17%	13%
Sequence Partitioning II	12%	8%
Divisor Summation (Hard)	78%	62%
Yet Another N-Queen Problem	33%	29%
Find The Determinant II	29%	28%
All Discs Considered	18%	11%
Boolean Logic	13%	8%
DNA Laboratory	43%	27%
IOICamp Sequence	40%	29%
Code	24%	8%
In Danger	8%	3%
Run Length Encoding	44%	6%
Fractan	24%	14%
Huffmans Greed	8%	5%
Binary Search Heap Construction	27%	20%
Text Generater II	6%	8%
Greedy Hydra II	28%	27%
Cardsharper	100%	0%
Assistance Required	16%	9%
The Bottom of a Graph	17%	10%
Fixed Partition Contest Management	19%	6%
Drink, on Ice	8%	0%
Edge	4%	0%
Fold	10%	0%
Genetic Code	12%	3%
Largest Rectangle in a Histogram	25%	17%
Nuclear Plants	54%	53%
Longest Common Substring	89%	73%
Longest Common Substring II	88%	82%
Problems Collection (Volume X)	32%	0%
Free tour II	21%	14%
Sudoku	23%	11%
The SetStack Computer	19%	12%
Pie	11%	4%
Ticket to Ride	13%	0%
The Bookcase	15%	5%
Printer Queue	11%	1%
Prime Path	6%	2%
Lineland Airport	33%	5%
Leonardo Notebook	20%	0%
Mice and Maze	7%	0%
Project File Dependencies	14%	1%
No Change	17%	6%
Making Waves	10%	5%
Making Pals	13%	6%
Making Money	17%	0%
Making Mountains Out Of Molehills	43%	7%
Making Labels	6%	0%
Making A Budget	10%	1%
Accumulate Cargo	23%	2%
Burrows Wheeler Precompression	19%	14%
Cool Numbers	25%	18%
Dragon Curves	11%	8%
Enrich my purse	13%	1%
Farmers Cattle	12%	9%
Game Time	20%	5%
Hanoi Calls	6%	2%
Instruction Decoder	9%	6%
Rectangles	40%	32%
Roman Roads	14%	0%
Circles	30%	12%
Image Projections	14%	2%
Tree cut	6%	1%
Set Cover	19%	5%
Ski Valley	18%	10%
Another Continuous Fractions Problem	56%	29%
Boxes (Hard)	92%	69%
Random Number Generator	10%	3%
Minus Operation	15%	4%
Load Balancing	11%	2%
Another Very Easy Problem! WOW!!!	32%	17%
Dab of Backpack	16%	5%
Cryptography	74%	37%
The Rolling Ball	60%	0%
Moving Pebbles	44%	2%
Truth Or Lie	12%	3%
One Instruction Computer Simulator	40%	10%
Please help You-Know-Who	22%	3%
Rectangle Tiling	21%	16%
Stone Removing Game	10%	6%
Strange Billboard	5%	3%
Cell Phone	19%	17%
Hexagonal Parcels	3%	6%
Key Task	14%	7%
Gates of Logic	26%	3%
Weird Numbers	15%	1%
Rectangular Polygon	10%	1%
Reaux! Sham! Beaux!	14%	9%
Robotic Sort	28%	29%
Tough Water Level	24%	16%
Minimum Distance	14%	6%
Candy I	9%	2%
Last Non-Zero Digit of Factorials	38%	21%
Number Labyrinth	36%	1%
Rain	9%	1%
K-In-A-Row	15%	1%
Cake	38%	7%
Trolls	22%	0%
Get Back!	8%	2%
Puzzle	24%	2%
Candy II	15%	3%
Pibonacci	77%	38%
Gossipers	21%	12%
(un)Fair Play	6%	5%
Golden Garden	13%	6%
Arranging Flowers	42%	25%
Dependency Problems	12%	4%
K Edge-disjoint Branchings	0%	0%
Root of a Linear Equation	72%	37%
Candy III	27%	2%
Biased Standings	25%	12%
Counting Subsequences	36%	19%
Digital Calculator	75%	23%
Hilbert Curve	20%	0%
Internet is Faulty	31%	30%
Kruskal	37%	31%
Anti-Blot System	10%	0%
Delicious Cake	60%	37%
Here-There	63%	3%
Pixel Shuffle	20%	19%
Towers of Powers	30%	5%
Ambiguous Codes	16%	7%
Ballroom Lights	8%	4%
Car Plates Competition	10%	0%
Drop the Triples	16%	12%
Emoticons	20%	19%
Finding Seats	36%	38%
Galou is back!	14%	2%
He is offside!	7%	0%
ICPC Scoreboard	7%	3%
Justice League	19%	7%
Musical Optimization	21%	12%
Making Pairs	27%	23%
Tan and His Interesting Game	40%	28%
Balloons in a Box	25%	1%
Undecodable Codes	31%	15%
Crossing the Desert	24%	2%
Ferries	28%	20%
Island Hopping	7%	0%
Partitions	68%	9%
Silly Sort	14%	3%
Bracket Sequence	17%	6%
Overlapping Words	19%	2%
Sequence	25%	12%
Manhattan	24%	17%
Segments	38%	4%
Tree Game	10%	1%
Broken Compass	31%	8%
Mario	27%	1%
String Distance	26%	8%
Another Longest Increasing Subsequence Problem	59%	31%
Arranging Amplifiers	19%	7%
Building Beacons	5%	0%
Calculate The Cost	26%	21%
Kirchhof Law	20%	9%
Distinct Subsequences	14%	7%
Eliminate The Enemies	28%	27%
Flying Frogs	19%	8%
G-Line Grid	58%	14%
Hospital at Hands	18%	7%
Incrementing The Integer	35%	25%
Jazzy Job	10%	0%
Minimal Triangulations of Graphs	27%	5%
Palindromes	48%	34%
Counting Rabbits	23%	15%
Phone Lines	18%	13%
Magic Program IV	49%	27%
Mispelling	5%	0%
Conversions	7%	0%
Encoding	17%	2%
Decoding	7%	0%
Flipping Burned Pancakes	6%	1%
Monkey Vines	8%	0%
Model Rocket Height	12%	0%
Tiling a Grid With Dominoes	5%	0%
Spatial Concepts Test	6%	0%
Another Permutation Problem	48%	20%
Chomp	13%	2%
Starcraft I	30%	2%
Archiver	34%	26%
Weird sorting	35%	5%
Art of War	38%	12%
Example	47%	15%
Illumination	80%	20%
Put a Point in a Hyperspace	32%	18%
Query on a tree IV	23%	5%
Polygon	8%	2%
Count Minimum Spanning Trees	43%	23%
Closest distance	47%	34%
Recursive Sequence (Version II)	14%	4%
Untitled Problem	34%	20%
Cow Cars	9%	1%
Glasnici	10%	0%
Maximal Quadrilateral Area	14%	4%
Army Strength	15%	9%
Breaking in	47%	38%
Inventing Test Data	25%	18%
K Equal Digits	73%	36%
Large party	58%	55%
Simplify the Railroad System	20%	4%
Perfect Rhyme	26%	17%
Number Guessing Game	3%	0%
Summing Sums	38%	14%
Prefix Tiling	24%	11%
Increasing Subsequences	23%	11%
Common Subsequences	25%	17%
Distinct Increasing Subsequences	22%	2%
Round-Robin Scheduling	28%	23%
Time Limit Exceeded	39%	34%
Find The Determinant III	29%	14%
Super Dice Game	25%	20%
Memory Limit Exceeded	25%	18%
Broken Keyboard	14%	7%
Decode the Strings	19%	11%
Forest	36%	11%
Help Bob	10%	6%
Another understanding of Super Dice Game	30%	20%
Knights of the Round Table	20%	5%
The Cow Doctor	19%	2%
Wild West	9%	5%
Find the Clones	14%	8%
The Warehouse	40%	20%
Widget Factory	19%	7%
Martian Mining	9%	3%
Word Rings	43%	31%
Party of Cloaked Killers	0%	0%
Volunteers	8%	0%
One Geometry Problem	22%	3%
Transportation	0%	0%
Not a Triangle	23%	20%
GCD2	15%	3%
Can you answer these queries V	15%	3%
Query on a tree V	32%	27%
Untitled Problem II	68%	46%
Emmons	86%	42%
Eclipse	73%	0%
Triomino Game	37%	2%
Painting Blocks (Act I)	8%	7%
Painting Blocks (Act II)	27%	24%
Electrophoretic	30%	0%
Median Filter	22%	14%
Life Game	5%	8%
Subdividing a Land	13%	6%
Connect Line Segments	13%	12%
Oil Company	22%	19%
Finding the Top RPS Player	3%	2%
Revenge of Voronoi	34%	16%
Castle Wall	58%	35%
Binary multiplication	31%	1%
Help the soldier	26%	8%
How many subsequences	50%	49%
Copying DNA	44%	39%
Power Modulo Inverted	67%	56%
Dictionary Subsequences	36%	36%
Odd Numbers of Divisors	42%	35%
Charlesbert and Merangelou	6%	3%
Longest Common Prefix	27%	13%
Palindromic Number	39%	16%
Stabards	18%	9%
Strings	13%	6%
Here We Go(relians) Again	10%	0%
Permutation Exponentiation	37%	21%
Congruence Equation	34%	8%
Game of Lines	15%	5%
Doors and Penguins	12%	0%
Divisibility Relation	55%	14%
Tree Construction	38%	22%
Yet Another Longest Palindrome Problem	35%	5%
Typesettin	8%	0%
Slink	10%	0%
Electronic Document Security	6%	1%
Guard	15%	0%
Race Against Time	25%	23%
D-query	27%	20%
Order statistic set	20%	15%
Roman Patrollers	16%	10%
Very Special Boxes	17%	1%
Hex Tile Equations	16%	0%
The Bridges of San Mochti	8%	0%
Bulletin Board	73%	11%
Serial Numbers	15%	0%
Umnozak	28%	12%
Doubled Numbers	12%	4%
Cestarine	24%	0%
Stack	18%	17%
Digital Image Recognition	40%	0%
Cavli	18%	3%
Setnja	41%	28%
Svada	11%	4%
Round Table	11%	5%
Permutation Code	7%	6%
Scavenger Hunt	8%	2%
Stamps	8%	2%
Parking Lot	27%	6%
A Bug’s Life	30%	9%
Mirrored Pairs	8%	1%
String Shuffle	9%	6%
Tourist	27%	15%
Highways	14%	6%
Monster Trap	29%	28%
Yoda Goes Palindromic !	18%	3%
Contest System Quality Assurance Tester	11%	2%
Changing Maze	12%	1%
Double Near Palindromes	18%	3%
The Knights of the Round Circle	3%	0%
Tribe Council	40%	7%
Knot or Not	50%	25%
Lagrange’s Four-Square Theorem	13%	11%
Almost Shortest Path	11%	6%
Bases	20%	2%
Candy	8%	5%
DNA Sequences	19%	13%
Electricity	9%	3%
Feynman	3%	0%
Pole Position	5%	1%
Higgs Boson	30%	0%
Traveling Shoemaker Problem	36%	4%
Bora Bora	20%	6%
Shrinking Polygons	27%	20%
Falling Ice	25%	0%
Ouroboros Snake	22%	1%
Histogram	11%	3%
The last digit	14%	4%
SkyScrapers	35%	28%
Song Contest	29%	0%
The Skateparks New Ramps	23%	0%
Robintron	20%	0%
Drive through MegaCity	43%	21%
Deposit	11%	6%
Baby	12%	7%
Begin	38%	37%
Crossbits	15%	5%
Elimination	26%	23%
The Top-Code	20%	20%
Hidden Triangle	23%	22%
Braille Transcription	67%	23%
The Nobel Thief	29%	0%
Prime Number Theorem	32%	24%
Game on board	31%	23%
Matrica	10%	2%
Binary Search Tree	27%	21%
Najkraci	9%	3%
Choosing Gloves	29%	2%
Boy Scouts	18%	5%
Parity	34%	19%
Hashing	60%	44%
Disjoint Paths	16%	2%
Company	10%	8%
Tree Similarity	13%	0%
Restaurant Tab	42%	4%
Prime Again	58%	50%
Patting Heads	17%	15%
Minimum Rotations	41%	36%
Word Counting	33%	6%
Lucky Numbers	13%	7%
Hanoi Subway System Construction	22%	0%
Earthquakes	10%	0%
Pretty Printing	35%	27%
Traffic Network	18%	10%
Winning Strategy	6%	0%
Farthest Headquarters	16%	11%
Adventure Tourism	36%	40%
Moebius	100%	100%
Cattle Bruisers	13%	2%
Moo University - Emergency Pizza Order	8%	3%
Maximum Sum	25%	20%
Primitive Root	23%	14%
Snooker	8%	1%
Rainbow Ride	8%	1%
Taming a T-REX	11%	5%
Slikar	5%	1%
Trezor	6%	4%
Periodni	17%	10%
Subset Sums	18%	10%
JEDNAKOST	24%	11%
GONDOR	5%	1%
MAJMUN	13%	4%
Bread Tree	12%	6%
George	10%	1%
Street	8%	3%
Lubenica	11%	3%
Kruska	11%	1%
Tresnja	19%	14%
Laser Phones	9%	2%
Area of circles	17%	4%
Reljef	3%	0%
Finding Palindromes	50%	25%
Who is The Boss	18%	14%
Total Flow	11%	2%
Military Story	16%	2%
GCD Extreme	30%	28%
Party At School	34%	12%
Tablica	10%	1%
Cvjetici	10%	8%
Rectangles Perimeter	15%	1%
Majstor	5%	0%
Cijevi	3%	0%
LATGACH3	5%	0%
When (You Believe)	40%	0%
Coins Game	8%	2%
Closest Number	16%	2%
Rectangles Counting	28%	5%
Space settlement	5%	0%
Bouncing Balls	23%	16%
Matrix Game	5%	10%
Maximal Independent Set	21%	12%
Convex Polygons	20%	20%
Even Palindrome	79%	39%
Finding Fractions	31%	13%
MinCut Query	18%	5%
Black and White Nim	0%	0%
Fight with functions	0%	0%
Color a tree	12%	0%
Star Polygon or Not	15%	0%
Lucius Dungeon	12%	5%
The Great Ball	11%	5%
Mystical River	28%	29%
Philosophers Stone	9%	3%
Filchs Dilemna	5%	3%
Manhattan Wire	36%	35%
Polygon on the Grid	14%	13%
Counting Digits	30%	25%
Different Digits	28%	20%
Group Partition	32%	25%
Maximum Triangle Area	26%	17%
Point Connection Game in a Circle	20%	2%
Minimum Permutation	16%	7%
Recaman’s Sequence	10%	6%
SHIFT Operator on Matrix	14%	13%
Search of Concatenated Strings	6%	10%
Kth Shortest Path	42%	41%
Nested Dolls	11%	4%
Bee Walk	8%	0%
K-th Number	43%	33%
Polynomial Evaluation - Angry Teacher	37%	15%
Paid Roads	8%	0%
Journey with Pigs	8%	1%
ELEVATOR II	14%	5%
Investment Money	2%	1%
Minimax Triangulation	14%	0%
M&M Game	15%	0%
Convert to Decimal Base System	24%	6%
Stargates	56%	40%
0 0 Pairs	31%	18%
Another Tree Problem	12%	4%
Most Servings Meal	11%	5%
Police Query	31%	24%
Distance Query	15%	13%
Whirligig number	21%	15%
Point Visible	31%	13%
Shortest Regular Bracket	17%	3%
String problem	2%	2%
Right Triangle Counting	39%	26%
FROGGER	7%	0%
GALLUP	0%	0%
Subway planning	11%	0%
Exploding CPU	7%	0%
Bipalindrome	24%	17%
Mass of Molecule	8%	1%
Phone List	24%	20%
Pizza Delivery	36%	29%
NERED	8%	1%
Cuckoo Hashing	20%	10%
Counting The Way of Bracket Replacement	6%	1%
Game	10%	0%
Card Sorting	8%	0%
A game with probability	62%	19%
Polygon	22%	4%
Rob Mini-Safe	12%	8%
Sell Pigs	10%	3%
Morphing is Fun	38%	12%
Two Professors	48%	16%
BLAST	8%	4%
Tele Broadcast	10%	4%
Locomotive	12%	0%
Sum of Vectors	18%	2%
Extend to Palindrome	36%	27%
Fast Maximum Flow	37%	30%
Euler Totient Function	23%	21%
Ellipse	63%	12%
IZBORI	33%	21%
OTOCI	18%	3%
PLAHTE	16%	10%
Domino	24%	19%
A1 Road	3%	2%
A conjecture of Paul Erds	10%	8%
Four colors	29%	28%
Square-free integers	15%	11%
Multiplicative digital root	38%	32%
A Knightly Pursuit	13%	3%
Herding	9%	1%
Distance on a square lattice	13%	3%
Temptation Island	11%	5%
Pizza Location	16%	13%
MELE3	10%	3%
Candy (Again)	50%	35%
Cube	24%	6%
Break a New RSA system	30%	26%
Amazing equality	31%	15%
Landing	67%	16%
Sky Code	23%	17%
Another Lucky Numbers	14%	6%
GCD Determinant	6%	1%
Dominoes	32%	6%
Lego	9%	0%
Hamster flight	15%	5%
Coder Ratings	21%	12%
Brackets Parade	10%	7%
Showstopper	15%	0%
Fast Maximum Matching	38%	33%
Payment System	0%	0%
Japan	26%	23%
"Shortest" pair of paths	21%	3%
Wandering Queen	49%	48%
Pilots	11%	2%
Train TimeTable	11%	0%
Rectangles	7%	2%
Tables	5%	0%
(K,N)-Knight	32%	4%
Dice	35%	15%
Drilling	46%	25%
The way to Bytemountain	12%	11%
Stamps	12%	5%
Byteantean towns	25%	10%
Circular game	29%	0%
Permutacja	24%	12%
Quasi-template	43%	42%
Catch Fish	11%	1%
The fate of the pineapple	16%	8%
Counting K-Rectangle	18%	19%
Empty Boxes	7%	0%
Gi trị lớn nhất 3	20%	11%
Snowflakes	29%	15%
Twofive	28%	0%
Cards shuffing	32%	25%
Counting Arborescence	24%	1%
Build a Fence	10%	0%
Circle vs Triangle	29%	7%
Repair the Door	36%	32%
Counting Expressions	20%	0%
Factorization, Factorization, Factorization	8%	0%
Gem	10%	0%
Highway	35%	20%
Power of Integer	28%	12%
Jumping Hands	5%	0%
Counting Graphs	0%	0%
Irreducible polynomials over GF2	48%	45%
Spelling Lists	24%	9%
Simple Arithmetics II	14%	2%
Bouncing Balls II	11%	4%
Brackets II	17%	5%
Going to the Movies	18%	8%
Jumbo Airlines	20%	0%
Shopping II	39%	32%
The Ant	28%	20%
Playfair Cracker	100%	0%
Flower growing	34%	17%
Counting Expressions II	13%	0%
Chaos Strings	24%	22%
Roads Repair	9%	10%
MobiZone vs VinaGone	5%	4%
Can you answer these queries VI	19%	15%
Primes in GCD Table	46%	35%
Binomial Coefficients	16%	9%
Digger Octaves	8%	4%
Frog Wrestling	14%	10%
String reduction	45%	14%
Determinant of Banded Matrices	46%	27%
Tobo or not Tobo	39%	30%
Adding Sevens	21%	12%
Match Maker	50%	30%
Adding up Triangles	28%	18%
Relax! It is just a game	9%	1%
Einbahnstrasse	19%	10%
Think I will Buy Me a Football Team	12%	7%
Musical Chairs	23%	22%
I Speak Whales	13%	12%
A Day at the Races	15%	1%
The Double HeLiX	10%	2%
Chop Ahoy! Revisited!	7%	1%
What is your Logo	7%	1%
Rotating Rings	13%	7%
Let go to the movies	28%	11%
Riding in cycles	30%	4%
ABCDEF	25%	25%
Star Wars	18%	17%
Texas Trip	10%	6%
Electric Fences	0%	0%
SETI	3%	0%
Arithmetic sequence	64%	50%
Proving Equivalences	15%	6%
Cross Mountain Climb	20%	6%
Gas Wars	21%	6%
Help Hemant Verma	26%	14%
Wireless	20%	15%
Gremlins	19%	0%
Cross Mountain Climb Extreme	39%	16%
Yanu in Movie theatre	15%	2%
Twice	33%	26%
Grid Points in a Triangle	34%	30%
ZSequence	50%	40%
Ant	18%	7%
Bridge	43%	19%
Words on graphs	24%	12%
Counting in a DAG	67%	51%
Run-Length Mathematics	11%	0%
Integer Factorization (20 digits)	58%	44%
Integer Factorization (15 digits)	36%	30%
Integer Factorization (29 digits)	86%	42%
Bridges! More bridges!	15%	0%
Goal for Ral	19%	0%
Madrids One Way Streets	10%	9%
Traveling Salesman	10%	1%
Lost in Madrid	12%	8%
Library for Madrid	15%	0%
Discrete Math Problem	26%	14%
Feline Olympics - Mouseball	13%	10%
Pretty function	24%	14%
Mystic Craft	0%	0%
Top 10	47%	38%
Spam Detection	0%	14%
Hero Adventure	100%	50%
Playing with Marbles	25%	19%
Two "Ways"	34%	16%
Wine trading in Gergovia	16%	15%
Minimal Possible String	81%	27%
Bomb the Bridge	14%	0%
Hello Kitty	6%	0%
A Pair of Graphs	8%	0%
Binary Integer	10%	9%
Cryptography Reloaded (Act I)	13%	0%
Djà vu	20%	20%
Experiment on a … Cable	0%	0%
Fire-Control System	19%	9%
Get-Together at Stockholm	7%	0%
History of Languages	20%	20%
Junk-Mail Filter	14%	6%
Alice’s Cube	7%	3%
Brute-force Algorithm EXTREME	38%	20%
Compressed String	10%	0%
Cryptography Reloaded (Act II)	13%	6%
Exciting Time	24%	7%
Flowers Placement	28%	27%
Game Simulator	-	-
Heroes Arrangement	45%	0%
Island Explorer	25%	16%
Jinyuetuan Puzzle	10%	4%
Factorial vs Power	34%	27%
Tower of Vientiane	12%	7%
Double Sorting	64%	21%
Monotonous numbers	26%	16%
Differential Diagnosis	27%	28%
Area of a Garden	13%	1%
A Coin Game	18%	13%
Recurrence	56%	43%
Adjacent Bit Counts	3%	1%
Air Combat	31%	30%
Family Problems	6%	1%
Interval Challenge	36%	35%
Mexican Standoff	25%	6%
Query Problem	22%	17%
Tetravex Puzzle	5%	1%
Four Mines	17%	0%
Fishing Net	21%	8%
Seinfeld	10%	2%
Tiles of Tetris, Not!	14%	1%
Not So Flat After All	8%	0%
Hop Do not Walk	10%	4%
Air Strike	13%	0%
Bird or not bird	14%	0%
Counting triangles	34%	2%
Deliver pizza	8%	2%
Electronic queue	14%	0%
Finding password	28%	8%
Going to school	4%	3%
Houses	27%	4%
Heavy Sequences	17%	0%
Buy Your House	0%	0%
Highway Patrol	13%	12%
Math with Bases (Easy)	38%	15%
Kutevi Hard	18%	10%
Sequoiadendron	9%	8%
Counting pairs	36%	30%
Math with Bases	29%	14%
LL and ErBao	34%	0%
Mobile Service Hard	40%	13%
Fractions on Tree	10%	5%
Snow White and the N dwarfs	37%	30%
Fractions on Tree ( reloaded !)	16%	10%
STONE GAME	5%	0%
The last digit re-visited	18%	2%
Primes of Lambda	12%	11%
123 Sequence	24%	6%
Paradox	19%	8%
Alternating Permutations	10%	10%
Permutation Jumping	0%	0%
AND Rounds	31%	29%
XOR Rounds	35%	25%
Troops of Sand Monsters	13%	0%
Tri	64%	40%
Square-free Integers Factorization	40%	40%
Factorial length	31%	11%
Finding Maximum	26%	22%
Finding Primes	28%	27%
LCM Sum	59%	57%
Maximum Sum Sequences	26%	14%
Selecting Teams	13%	9%
Travelling Knight	13%	6%
Traversing Grid	9%	5%
Weird Function	30%	22%
Frequent Prime Ranges	12%	2%
Yet Another Permutations Problem	10%	6%
Matrix Game	22%	2%
Dinner	27%	11%
Mountain Walking	14%	1%
Another Box Problem	14%	0%
The Game	24%	2%
Minimum Diameter Circle	46%	5%
PBCGAME	11%	3%
Another GCD problem	12%	3%
Chocolate	44%	20%
Jane and Tarzan	19%	5%
Edit distance	21%	6%
Increasing Powers of K	42%	32%
Matches	39%	15%
Inversion Count	34%	27%
Rank of a Fraction	34%	30%
Another Game With Numbers	25%	5%
Sum of products	16%	5%
Treeramids	13%	10%
Bomberman	13%	0%
Robbery 2	23%	16%
Shmoogle Wave	34%	33%
Yodaness Level	23%	19%
Experiment	37%	36%
Decipher	21%	6%
Move Marbles	50%	0%
The hunt for Gollum	16%	10%
Many polygons	15%	14%
ZUMA	21%	1%
Rock-Paper-Scissors-Lizard-Spock	9%	0%
Two Array Problem	44%	35%
Counting Triangles 2	42%	29%
PP numbers	10%	6%
Finding the Kth Prime	27%	27%
Printing some primes	32%	31%
Bowling	24%	1%
Hamster Flight 2	13%	0%
The Very Greatest Common Divisor	59%	45%
Printing some primes (Hard)	72%	57%
Finding the Kth Prime (Hard)	25%	25%
Breaking Chocolates	34%	11%
Counting Diameter	25%	0%
Travelling Salesman Again !	22%	13%
Farmer Sepp	20%	14%
N DIV PHI_N	15%	3%
N DIV PHI_N (Hard)	32%	28%
Esferas	17%	0%
Divide and conquer	43%	42%
Segment Tree	50%	0%
Islands and Hotel Chains	25%	0%
Snowball Game	28%	9%