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| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
| ID | Title | Solved | Source |
|---|---|---|---|
| 3822 | Cover Up | 24 | 2009 East Central North America |
| 3823 | Decompressing in a GIF | 45 | 2009 East Central North America |
| 3824 | Flipper | 72 | 2009 East Central North America |
| 3825 | Here's a Product Which Will Make You Tensor | 24 | 2009 East Central North America |
| 3826 | Trip the Lights Fantastic | 32 | 2009 East Central North America |
| 1001 | Exponentiation | 35225 | East Central North America 1988 |
| 1118 | Lining Up | 5296 | East Central North America 1994 |
| 1126 | Simply Syntax | 2097 | East Central North America 1994 |
| 1127 | Jack Straws | 1627 | East Central North America 1994 |
| 1139 | Cat and Mouse | 299 | East Central North America 1994 |
| 1140 | Expanding Fractions | 1189 | East Central North America 1994 |
| 1488 | TEX Quotes | 4488 | East Central North America 1994 |
| 1489 | Egyptian Multiplication | 236 | East Central North America 1994 |
| 1490 | Cabinets | 56 | East Central North America 1994 |
| 1491 | Pi | 2519 | East Central North America 1995 |
| 1492 | Up and Down Sequences | 418 | East Central North America 1995 |
| 1493 | Machined Surfaces | 2032 | East Central North America 1995 |
| 1494 | Sunrise | 120 | East Central North America 1995 |
| 1495 | LED Test | 163 | East Central North America 1995 |
| 1496 | Word Index | 2608 | East Central North America 1995 |
| 1497 | Molecules | 96 | East Central North America 1995 |
| 1498 | Matching Meetings | 37 | East Central North America 1996 |
| 1499 | Supercomputer Selection, The Sequel | 39 | East Central North America 1996 |
| 1500 | Polygonal Puzzle | 30 | East Central North America 1996 |
| 1501 | Word-Search Wonder | 479 | East Central North America 1996 |
| 1502 | MPI Maelstrom | 4473 | East Central North America 1996 |
| 1503 | Integer Inquiry | 10467 | East Central North America 1996 |
| 1007 | DNA Sorting | 35428 | East Central North America 1998 |
| 1013 | Counterfeit Dollar | 13834 | East Central North America 1998 |
| 1016 | Numbers That Count | 6381 | East Central North America 1998 |
| 1512 | Keeps Going and Going and ... | 53 | East Central North America 1998 |
| 1513 | Scheduling Lectures | 390 | East Central North America 1998 |
| 1514 | Metal Cutting | 138 | East Central North America 1998 |
| 1515 | Street Directions | 444 | East Central North America 1998 |
| 1516 | Parallel Deadlock | 41 | East Central North America 1998 |
| 1002 | 487-3279 | 32830 | East Central North America 1999 |
| 1006 | Biorhythms | 35267 | East Central North America 1999 |
| 1027 | The Same Game | 1960 | East Central North America 1999 |
| 1042 | Gone Fishing | 11531 | East Central North America 1999 |
| 1066 | Treasure Hunt | 2157 | East Central North America 1999 |
| 1085 | Triangle War | 827 | East Central North America 1999 |
| 1086 | Unscrambling Images | 306 | East Central North America 1999 |
| 1087 | A Plug for UNIX | 3963 | East Central North America 1999 |
| 1639 | Picnic Planning | 2113 | East Central North America 2000 |
| 1640 | Poly-polygonal Numbers | 135 | East Central North America 2000 |
| 1641 | Rational Approximation | 49 | East Central North America 2000 |
| 1642 | Stacking Cubes | 466 | East Central North America 2000 |
| 1643 | Checker's Check | 50 | East Central North America 2000 |
| 1644 | To Bet or Not To Bet | 449 | East Central North America 2000 |
| 1645 | BSP Trees | 87 | East Central North America 2000 |
| 1646 | Double Trouble | 175 | East Central North America 2000 |
| 1028 | Web Navigation | 13340 | East Central North America 2001 |
| 1043 | What's In A Name? | 861 | East Central North America 2001 |
| 1094 | Sorting It All Out | 8998 | East Central North America 2001 |
| 1095 | Trees Made to Order | 3415 | East Central North America 2001 |
| 1096 | Space Station Shielding | 492 | East Central North America 2001 |
| 1097 | Roads Scholar | 292 | East Central North America 2001 |
| 1098 | Robots | 177 | East Central North America 2001 |
| 1099 | Square Ice | 1500 | East Central North America 2001 |
| 1234 | Ball Toss | 509 | East Central North America 2002 |
| 1235 | Galactic Breakup | 107 | East Central North America 2002 |
| 1239 | Increasing Sequences | 856 | East Central North America 2002 |
| 1240 | Pre-Post-erous! | 1122 | East Central North America 2002 |
| 1241 | Knockout Tournament | 506 | East Central North America 2002 |
| 1242 | Plugged In | 176 | East Central North America 2002 |
| 1243 | One Person | 1522 | East Central North America 2002 |
| 1244 | Slots of Fun | 664 | East Central North America 2002 |
| 1617 | Crypto Columns | 1583 | East Central North America 2003 |
| 1618 | Decorations | 360 | East Central North America 2003 |
| 1619 | EKG Sequence | 261 | East Central North America 2003 |
| 1620 | Phone Home | 368 | East Central North America 2003 |
| 1621 | Polly Nomials | 247 | East Central North America 2003 |
| 1622 | Pushing Boxes | 198 | East Central North America 2003 |
| 1623 | Squadtrees | 173 | East Central North America 2003 |
| 1624 | This Takes the Cake | 366 | East Central North America 2003 |
| 2033 | Alphacode | 3414 | East Central North America 2004 |
| 2034 | Anti-prime Sequences | 1137 | East Central North America 2004 |
| 2035 | Hit or Miss | 176 | East Central North America 2004 |
| 2036 | I Conduit! | 256 | East Central North America 2004 |
| 2037 | Roll Playing Games | 72 | East Central North America 2004 |
| 2038 | Team Rankings | 1007 | East Central North America 2004 |
| 2039 | To and Fro | 5622 | East Central North America 2004 |
| 2040 | Translations | 142 | East Central North America 2004 |
| 2731 | ACM(ACronymMaker) | 112 | East Central North America 2005 |
| 2732 | Countdown | 348 | East Central North America 2005 |
| 2733 | The Game of Efil | 185 | East Central North America 2005 |
| 2734 | Queens, Knights and Pawns | 836 | East Central North America 2005 |
| 2735 | Reliable Nets | 272 | East Central North America 2005 |
| 2736 | Square Count | 199 | East Central North America 2005 |
| 2737 | Swamp Things | 348 | East Central North America 2005 |
| 2738 | Two Ends | 1019 | East Central North America 2005 |
| 3310 | Caterpillar | 980 | East Central North America 2006 |
| 3311 | Hie with the Pie | 3150 | East Central North America 2006 |
| 3312 | Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob Benjamin Go to the Regionals | 873 | East Central North America 2006 |
| 3313 | The Mastermind Master's Mind | 86 | East Central North America 2006 |
| 3314 | Plaque Pack | 417 | East Central North America 2006 |
| 3315 | Roofing It | 95 | East Central North America 2006 |
| 3316 | Snakes on a Plane | 421 | East Central North America 2006 |
| 3317 | Stake Your Claim | 314 | East Central North America 2006 |
| 2105 | IP Address | 9897 | México and Central America 2004 |
| 2106 | Boolean Expressions | 1368 | México and Central America 2004 |
| 2107 | Gear Profiles | 75 | México and Central America 2004 |
| 2108 | Lazy Pianist | 191 | México and Central America 2004 |
| 2109 | Power of Cryptography | 10326 | México and Central America 2004 |
| 1454 | Factorial Frequencies | 1101 | North Central North America 1993 |
| 1537 | Identifying Legal Pascal Real Constants | 214 | North Central North America 1993 |
| 1538 | Extrapolation Using a Difference Table | 152 | North Central North America 1993 |
| 1539 | Evaluating Simple C Expressions | 265 | North Central North America 1993 |
| 1540 | The Finite State Text-Processing | 31 | North Central North America 1993 |
| 1307 | Mapping the Route | 205 | North Central North America 1997 |
| 1308 | Is It A Tree? | 7155 | North Central North America 1997 |
| 1309 | Coconuts, Revisited | 759 | North Central North America 1997 |
| 1310 | Nonstop Travel | 172 | North Central North America 1997 |
| 1311 | Doing Windows | 118 | North Central North America 1997 |
| 1312 | Numerically Speaking | 594 | North Central North America 1997 |
| 1290 | Grandpa's Rubik Cube | 212 | South America 2002 |
| 1291 | This Sentence is False | 409 | South America 2002 |
| 1292 | Will Indiana Jones Get There? | 393 | South America 2002 |
| 1293 | Duty Free Shop | 473 | South America 2002 |
| 1294 | Not Too Convex Hull | 99 | South America 2002 |
| 1295 | I hate SPAM, but some people love it | 154 | South America 2002 |
| 1296 | Noise Effect | 134 | South America 2002 |
| 1297 | Supermarket | 458 | South America 2002 |
| 2086 | Land Division Tax | 228 | South America 2004 |
| 2087 | Petanque | 61 | South America 2004 |
| 2088 | Long Night of Museums | 200 | South America 2004 |
| 2089 | Magic Trick | 288 | South America 2004 |
| 2090 | Two-Stacks Solitaire | 118 | South America 2004 |
| 2091 | Zing Zhu's Oyster Farm | 52 | South America 2004 |
| 2092 | Grandpa is Famous | 4177 | South America 2004 |
| 2093 | Cutting Edge | 37 | South America 2004 |
| 2862 | Tornado! | 396 | South America 2005 |
| 2863 | Mission Impossible | 20 | South America 2005 |
| 2864 | Pascal Library | 2499 | South America 2005 |
| 2865 | ICPC Strikes Again | 93 | South America 2005 |
| 2866 | Optical Fiber | 136 | South America 2005 |
| 2867 | Where Are My Genes | 447 | South America 2005 |
| 2868 | Computer DJ | 235 | South America 2005 |
| 2869 | P-Networks | 116 | South America 2005 |
| 2870 | Light Up | 239 | South America 2005 |
| 3112 | Digital Biochemist Circuit | 342 | South America 2006, Brazil Subregion |
| 3113 | The Halting Problem | 27 | South America 2006, Brazil Subregion |
| 3114 | Countries in War | 793 | South America 2006, Brazil Subregion |
| 3115 | Energy × Delay | 117 | South America 2006, Brazil Subregion |
| 3116 | MegaCheckers | 36 | South America 2006, Brazil Subregion |
| 3117 | World Cup | 4093 | South America 2006, Brazil Subregion |
| 3118 | Critical Route | 69 | South America 2006, Brazil Subregion |
| 3119 | Friends or Enemies? | 166 | South America 2006, Brazil Subregion |
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