5 Mathematics

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