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Dev Skill
CATS Online Judge
beecrowd
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Google Code Jam
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ACM-ICPC Live Archive
beecrowd
5 Mathematics
Problem ID
Title
Solution by
Most Popular Input by
1028
Collectable Cards
beecrowd former URI Online Judge
monir004
1093
Vampires
beecrowd former URI Online Judge
feodorv
1161
Factorial Sum
beecrowd former URI Online Judge
bitfreeze
1163
Angry Ducks
beecrowd former URI Online Judge
RandyW
1169
Grains in a Chess Board
beecrowd former URI Online Judge
Joen
1170
Blobs
beecrowd former URI Online Judge
MMello
1193
Base Conversion
beecrowd former URI Online Judge
Joen
1197
Back to High School Physics
beecrowd former URI Online Judge
rhangels
1198
Hashmat the Brave Warrior
beecrowd former URI Online Judge
Joen
1199
Simple Base Conversion
beecrowd former URI Online Judge
marcelim12
1202
White Nights Festival
beecrowd former URI Online Judge
bitfreeze
1212
Primary Arithmetic
beecrowd former URI Online Judge
prokawsar
1213
Ones
beecrowd former URI Online Judge
Arthur
1214
Above Average
beecrowd former URI Online Judge
bitfreeze
1219
Colourful Flowers
beecrowd former URI Online Judge
bitfreeze
1220
The Trip
beecrowd former URI Online Judge
MMello
1221
Fast Prime Number
beecrowd former URI Online Judge
marcelim12
1230
Integral
beecrowd former URI Online Judge
feodorv
1232
Rubik Cycle
beecrowd former URI Online Judge
feodorv
1233
Star
beecrowd former URI Online Judge
brunohjs
1240
Fit or Dont Fit I
beecrowd former URI Online Judge
marcelim12
1247
Coast Guard
beecrowd former URI Online Judge
Rifat121
1264
An Easy Problem!
beecrowd former URI Online Judge
RandyW
1279
Leap Year or Not Leap Year and …
beecrowd former URI Online Judge
monir004
1280
Friends (1)
beecrowd former URI Online Judge
heitor0088
1289
What Is the Probability?
beecrowd former URI Online Judge
feodorv
1297
Environment Protection
beecrowd former URI Online Judge
feodorv
1304
Average Speed
beecrowd former URI Online Judge
Add input
1306
Numbering Roads
beecrowd former URI Online Judge
bergolho
1307
All You Need Is Love
beecrowd former URI Online Judge
DDX
1308
Etruscan Warriors Never Play Chess
beecrowd former URI Online Judge
gmorikawa
1309
Monetary Formatting
VitorVilela
Arthur
1316
Duty Free Shop
beecrowd former URI Online Judge
feodorv
1323
Feynman
beecrowd former URI Online Judge
16321
1324
Higgs Boson
beecrowd former URI Online Judge
PedroHP98
1338
It-Miha
beecrowd former URI Online Judge
feodorv
1346
Child Play
beecrowd former URI Online Judge
feodorv
1347
Kryptonite Mine
beecrowd former URI Online Judge
feodorv
1352
Square Lottery
beecrowd former URI Online Judge
feodorv
1353
Super Poker
beecrowd former URI Online Judge
Add input
1371
Close the Doors!
beecrowd former URI Online Judge
rhangels
1376
Brothers
beecrowd former URI Online Judge
feodorv
1380
Bacilli Population Growth
beecrowd former URI Online Judge
feodorv
1381
Diophantine Equations
beecrowd former URI Online Judge
feodorv
1390
Bases
beecrowd former URI Online Judge
Add input
1392
Electric Bill
beecrowd former URI Online Judge
feodorv
1393
Hexagonal Tiles
beecrowd former URI Online Judge
agnsoft
1398
Ocean Deep! Make It Shallow!!
beecrowd former URI Online Judge
Meyito
1399
Array Transformer
beecrowd former URI Online Judge
Add input
1400
Counting Game
beecrowd former URI Online Judge
feodorv
1422
Bacteria
beecrowd former URI Online Judge
feodorv
1429
Factorial Again!
beecrowd former URI Online Judge
marcelim12
1433
The Splitting Club
beecrowd former URI Online Judge
feodorv
1434
Roman Patrollers
beecrowd former URI Online Judge
Add input
1436
Brick Game
beecrowd former URI Online Judge
Leonardo_Su
1444
Drakes' Racing
beecrowd former URI Online Judge
RandyW
1450
Ramesses' Games
beecrowd former URI Online Judge
feodorv
1457
Oracle of Alexandria
beecrowd former URI Online Judge
victorocv
1465
Complex, Difficult and Complicated
feodorv
feodorv
1481
Zing Zhu’s Oyster Farm
beecrowd former URI Online Judge
feodorv
1484
Type & Add
beecrowd former URI Online Judge
feodorv
1488
Magic Numbers?
beecrowd former URI Online Judge
feodorv
1492
Counting Ones
beecrowd former URI Online Judge
rhangels
1501
How Many Zeros and How Many Digits?
beecrowd former URI Online Judge
feodorv
1505
Curo Factories
beecrowd former URI Online Judge
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1512
Tiles (1)
beecrowd former URI Online Judge
16321
1526
Transporting Snacks
beecrowd former URI Online Judge
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1531
Fibonacci Again!
beecrowd former URI Online Judge
feodorv
1537
Bank Line
beecrowd former URI Online Judge
feodorv
1544
The Last Non-Zero Digit
beecrowd former URI Online Judge
feodorv
1554
N.1 Continuous
beecrowd former URI Online Judge
lucasfei
1555
Functions
beecrowd former URI Online Judge
luizbarcelos
1563
The Big Problem
beecrowd former URI Online Judge
feodorv
1567
(2/3/4)-D Sqr/Rects/Cubes/Boxes?
beecrowd former URI Online Judge
feodorv
1568
{Sum+=i++} to Reach N
beecrowd former URI Online Judge
gmorikawa
1570
A Day in Math-Land
feodorv
feodorv
1572
The Unreal Tournament
feodorv
feodorv
1577
Constructible Regular Polygons
beecrowd former URI Online Judge
16321
1580
Quid Est Veritas? Est Vir Qui Adest!
feodorv
16321
1582
The Pythagorean Theorem
beecrowd former URI Online Judge
Zero07
1620
Delaunay Triangulation
beecrowd former URI Online Judge
bitfreeze
1623
The Language
beecrowd former URI Online Judge
Paulo Silva
1624
Promotion
beecrowd former URI Online Judge
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1625
Robocopy
beecrowd former URI Online Judge
Add input
1626
The Incredible Chapecoense Pizza Contest
beecrowd former URI Online Judge
feodorv
1630
Stakes
beecrowd former URI Online Judge
MMello
1634
Another Lottery
beecrowd former URI Online Judge
agnsoft
1635
Ballot Evaluation
beecrowd former URI Online Judge
feodorv
1641
Alfredo's Pizza Restaurant
beecrowd former URI Online Judge
feodorv
1644
Decode the Strings
beecrowd former URI Online Judge
feodorv
1647
A Game With Marbles
beecrowd former URI Online Judge
feodorv
1650
Black and White Painting
beecrowd former URI Online Judge
gmorikawa
1656
Halloween Treats
beecrowd former URI Online Judge
feodorv
1658
Dihedral Groups
beecrowd former URI Online Judge
Add input
1660
Flavius Josephus Reloaded
beecrowd former URI Online Judge
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1662
Homogeneous Squares
beecrowd former URI Online Judge
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1674
Fractran
beecrowd former URI Online Judge
feodorv
1688
Intergalactic Nim
beecrowd former URI Online Judge
Add input
1694
Lottery (1)
beecrowd former URI Online Judge
feodorv
1697
Jaida and Multiply Game
beecrowd former URI Online Judge
gmorikawa
1703
Jumping Stones
beecrowd former URI Online Judge
Add input
1705
Binary Lover
beecrowd former URI Online Judge
victorocv
1722
How Many Fibs?
beecrowd former URI Online Judge
VitorVilela
1729
Average Is Not Fast Enough!
beecrowd former URI Online Judge
victorocv
1734
Bound Found
beecrowd former URI Online Judge
Add input
1735
Code the Tree
beecrowd former URI Online Judge
rhangels
1736
Decode the Tree
beecrowd former URI Online Judge
Add input
1745
Counting Substhreengs
beecrowd former URI Online Judge
VitorVilela
1754
The Time Room
beecrowd former URI Online Judge
gmorikawa
1756
Genetic Algorithm
beecrowd former URI Online Judge
feodorv
1760
Koch Snowflake
beecrowd former URI Online Judge
gmorikawa
1761
Christmas Decorations
beecrowd former URI Online Judge
feodorv
1776
Prom (2)
beecrowd former URI Online Judge
feodorv
1785
Kaprekar
beecrowd former URI Online Judge
FelipeF
1795
Trinomial Triangle
beecrowd former URI Online Judge
rogerio.sousa
1801
Playing With Numbers (2)
beecrowd former URI Online Judge
feodorv
1805
Natural Sum
beecrowd former URI Online Judge
terencevitor
1807
Trinomial Triangle, the Revenge
beecrowd former URI Online Judge
feodorv
1815
Drunk People?
beecrowd former URI Online Judge
feodorv
1819
Estimating Production
beecrowd former URI Online Judge
feodorv
1829
Biggest Number Game
beecrowd former URI Online Judge
RandyW
1830
Boxes of Chocolates
feodorv
feodorv
1831
Hard Day at Work
beecrowd former URI Online Judge
feodorv
1839
The Chamber of Secrets
beecrowd former URI Online Judge
feodorv
1841
The Goblet of Fire
beecrowd former URI Online Judge
feodorv
1869
Base 32
beecrowd former URI Online Judge
rhangels
1872
Palindrome Double
beecrowd former URI Online Judge
Add input
1904
Odds and Evens 2.0
beecrowd former URI Online Judge
feodorv
1909
Help Kiko
beecrowd former URI Online Judge
feodorv
1926
Marianne and the Twin Cousins
beecrowd former URI Online Judge
rhangels
1946
Pyramid of Fortune
beecrowd former URI Online Judge
gmorikawa
1949
Shift Register
beecrowd former URI Online Judge
feodorv
1967
The Final Frontier
beecrowd former URI Online Judge
feodorv
1968
The Undiscovered Country
beecrowd former URI Online Judge
feodorv
1969
Generations
beecrowd former URI Online Judge
feodorv
1989
Doing Nothing
beecrowd former URI Online Judge
feodorv
1990
Equilibrium
beecrowd former URI Online Judge
ramon.sarmento
1992
Gaining Time
beecrowd former URI Online Judge
Add input
1995
Game, Set and Match
beecrowd former URI Online Judge
Add input
1999
Ball of Reconciliation
beecrowd former URI Online Judge
gmorikawa
2001
Bile
beecrowd former URI Online Judge
feodorv
2007
Fence the Vegetables Fail
beecrowd former URI Online Judge
Add input
2033
Interest on Loan
feodorv
Add input
2034
Cantor
beecrowd former URI Online Judge
feodorv
2044
In Debt
beecrowd former URI Online Judge
16321
2063
Hunting Digletts
beecrowd former URI Online Judge
feodorv
2066
melborP A
beecrowd former URI Online Judge
rhangels
2068
Setting Up a Date
beecrowd former URI Online Judge
rhangels
2069
Inês Venezuela's Square Table
beecrowd former URI Online Judge
gmorikawa
2076
Great Allocation of Commodities
feodorv
rogerio.sousa
2084
Elections
beecrowd former URI Online Judge
monir004
2096
Horace and His Primes
beecrowd former URI Online Judge
feodorv
2100
Xing Tzen Zu’s Movie Theater
beecrowd former URI Online Judge
feodorv
2101
Day Combinations
beecrowd former URI Online Judge
feodorv
2107
The Ekaterinburg Pyramids
beecrowd former URI Online Judge
feodorv
2114
Poker
beecrowd former URI Online Judge
feodorv
2129
Factorial (2)
beecrowd former URI Online Judge
16321
2133
Dinostratus Numbers
beecrowd former URI Online Judge
feodorv
2135
Retrieval
beecrowd former URI Online Judge
agnsoft
2145
The Love Life of the Numbers
beecrowd former URI Online Judge
feodorv
2148
Dice Seat
beecrowd former URI Online Judge
feodorv
2149
The Uncle Phill Bonati's Sequence
beecrowd former URI Online Judge
DanielPDF
2154
Polynomial Derivative
beecrowd former URI Online Judge
rhangels
2170
Taxes of Project
beecrowd former URI Online Judge
Dressyh
2177
Rio 2016
beecrowd former URI Online Judge
Isac
2180
Travel to Mars in Primo Speed
beecrowd former URI Online Judge
16321
2204
Stop the Bomb!
beecrowd former URI Online Judge
feodorv
2218
The Fearful Evil-Son
beecrowd former URI Online Judge
feodorv
2238
Dividers
beecrowd former URI Online Judge
agnsoft
2291
Divine Numbers
beecrowd former URI Online Judge
feodorv
2335
Arquibaldo's Challenge
beecrowd former URI Online Judge
agnsoft
2337
Pro Ability
beecrowd former URI Online Judge
agnsoft
2474
Mocking the System
beecrowd former URI Online Judge
wyllian
2489
Flecha No Coelho
beecrowd former URI Online Judge
feodorv
2494
Pens
beecrowd former URI Online Judge
feodorv
2497
Counting Cycles
beecrowd former URI Online Judge
feodorv
2499
Internal Triangle
beecrowd former URI Online Judge
feodorv
2505
Autopotential
beecrowd former URI Online Judge
gmorikawa
2514
Lunar Alignment
beecrowd former URI Online Judge
16321
2516
Running
beecrowd former URI Online Judge
16321
2584
Pentagon
feodorv
feodorv
2589
The Biggest Prime Gap
feodorv
feodorv
2596
Xenlonguinho
feodorv
feodorv
2597
Xenlongao
feodorv
VitorVilela
2598
Placing Radars
feodorv
feodorv
2660
Cigarras Periódicas
beecrowd former URI Online Judge
feodorv
2661
Despojados
beecrowd former URI Online Judge
feodorv
2667
Jogo De Boca
beecrowd former URI Online Judge
cavalca
2668
K-ésimo
beecrowd former URI Online Judge
feodorv
2680
Payroll
beecrowd former URI Online Judge
victorocv
2681
Monkeys at Hanoi Tower
beecrowd former URI Online Judge
ArturMiguel
2711
Unlocking a Cell Phone
beecrowd former URI Online Judge
Add input
2726
Full Sleigh
beecrowd former URI Online Judge
feodorv
2735
Nina's Gift
beecrowd former URI Online Judge
VitorVilela
2767
Party
beecrowd former URI Online Judge
feodorv
2777
Dabriel's Subsets
beecrowd former URI Online Judge
feodorv
2801
Affine Cipher
beecrowd former URI Online Judge
agnsoft
2817
Darlan's Gas Station
beecrowd former URI Online Judge
Add input
2819
Letters to Santa
beecrowd former URI Online Judge
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2820
Bruna's Digits
beecrowd former URI Online Judge
Add input
2822
My First Little Graph
beecrowd former URI Online Judge
Add input
2839
The Rangel Stockings
beecrowd former URI Online Judge
Carlos_Mesquita
2859
Digit Root
beecrowd former URI Online Judge
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2864
How Tall Is It?
beecrowd former URI Online Judge
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2873
Pyramid (2)
beecrowd former URI Online Judge
Add input
2878
Cortador de Pizza
Morass
feodorv
2890
Coloring Tetrahedrons
feodorv
agnsoft
2892
Training On The Velodrome
feodorv
Add input
2937
Snake Norato
beecrowd former URI Online Judge
Add input
2953
One More Game
beecrowd former URI Online Judge
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2955
Truuuuuco!
beecrowd former URI Online Judge
Add input
2956
13 Variables Derivative
beecrowd former URI Online Judge
Add input
2978
Card
beecrowd former URI Online Judge
feodorv
2981
We Are Going To Close
feodorv
Add input
2983
Not Everything is Strike
feodorv
feodorv
2986
Not Everything is Strike Hard Version
feodorv
feodorv
3002
Save Lilly!
beecrowd former URI Online Judge
feodorv
3004
Envelopes
feodorv
Add input
3007
Lucas and Frobenius
feodorv
feodorv