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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 | Ratio(AC/submit) | Date |
| 2100 | Graveyard Design | 25%(4409/17290) | Aug 31, 2025 |
| 2101 | Honey and Milk Land | 54%(1890/3474) | Jun 2, 2025 |
| 2102 | Incredible! Impossible! | 28%(255/880) | May 12, 2025 |
| 2103 | Jackpot | 21%(258/1223) | May 16, 2025 |
| 2104 | K-th Number | 36%(31629/87604) | Aug 21, 2025 |
| 2105 | IP Address | 56%(12217/21519) | Aug 17, 2025 |
| 2106 | Boolean Expressions | 34%(2699/7842) | Aug 4, 2025 |
| 2107 | Gear Profiles | 27%(120/436) | Nov 26, 2023 |
| 2108 | Lazy Pianist | 16%(244/1506) | May 25, 2022 |
| 2109 | Power of Cryptography | 49%(15662/31473) | Aug 17, 2025 |
| 2110 | Mountain Walking | 31%(1853/5887) | May 31, 2025 |
| 2111 | Millenium Leapcow | 36%(869/2378) | Aug 4, 2025 |
| 2112 | Optimal Milking | 35%(8316/23501) | Aug 9, 2025 |
| 2113 | Agents | 23%(121/526) | May 25, 2025 |
| 2114 | Boatherds | 32%(1640/5067) | Aug 11, 2025 |
| 2115 | C Looooops | 29%(12575/42632) | Aug 19, 2025 |
| 2116 | Death to Binary? | 32%(958/2993) | Aug 28, 2025 |
| 2117 | Electricity | 30%(2607/8504) | Aug 19, 2025 |
| 2118 | Firepersons | 41%(590/1425) | May 8, 2025 |
| 2119 | God of the Vile Baskers | 30%(326/1082) | May 26, 2025 |
| 2120 | Herbalists | 35%(61/173) | May 14, 2024 |
| 2121 | Inglish-Number Translator | 39%(3355/8547) | May 19, 2025 |
| 2122 | Japan Plotter Driver | 40%(293/723) | May 22, 2025 |
| 2123 | Artinals | 11%(36/307) | Feb 16, 2022 |
| 2124 | Crankshaft | 23%(216/928) | Aug 26, 2025 |
| 2125 | Destroying The Graph | 32%(3053/9453) | May 25, 2025 |
| 2126 | Factoring a Polynomial | 50%(1524/3006) | May 13, 2025 |
| 2127 | Greatest Common Increasing Subsequence | 25%(3759/14833) | Aug 17, 2025 |
| 2128 | Highways | 38%(1185/3114) | May 8, 2025 |
| 2129 | Invariant Polynomials | 37%(131/346) | May 24, 2025 |
| 2130 | Jogging | 9%(44/442) | May 20, 2025 |
| 2131 | Key Insertion | 23%(592/2532) | May 23, 2025 |
| 2132 | Cow Math | 33%(677/2043) | May 8, 2025 |
| 2133 | Cow Imposters | 26%(521/1953) | May 22, 2025 |
| 2134 | Traffic Lights | 20%(170/818) | Aug 29, 2025 |
| 2135 | Farm Tour | 38%(9340/24532) | Aug 4, 2025 |
| 2136 | Vertical Histogram | 46%(10469/22330) | Aug 17, 2025 |
| 2137 | Cowties | 34%(1250/3658) | May 8, 2025 |
| 2138 | Travel Games | 35%(1666/4684) | May 19, 2025 |
| 2139 | Six Degrees of Cowvin Bacon | 47%(5718/12051) | Jul 23, 2025 |
| 2140 | Herd Sums | 57%(11742/20450) | Aug 18, 2025 |
| 2141 | Message Decowding | 55%(7913/14287) | May 12, 2025 |
| 2142 | The Balance | 42%(5446/12692) | Jul 30, 2025 |
| 2143 | Make a Sequence | 58%(329/564) | May 12, 2025 |
| 2144 | Leaky Cryptography | 65%(342/519) | May 20, 2025 |
| 2145 | Pathological Paths | 54%(166/307) | Dec 16, 2022 |
| 2146 | Confusing Login Names | 33%(423/1249) | May 19, 2025 |
| 2147 | Dice Puzzle | 37%(111/299) | Dec 17, 2022 |
| 2148 | Color the Map | 29%(268/905) | Jul 12, 2024 |
| 2149 | Inherit the Spheres | 33%(151/451) | Oct 30, 2024 |
| 2150 | Crossing Prisms | 28%(62/220) | Aug 27, 2021 |
| 2151 | Check the difficulty of problems | 40%(4514/11011) | Aug 28, 2025 |
| 2152 | Fire | 51%(1482/2852) | Aug 21, 2025 |
| 2153 | Rank List | 33%(4190/12559) | Aug 18, 2025 |
| 2154 | Color | 31%(4477/14393) | Jul 25, 2025 |
| 2155 | Matrix | 35%(14771/42003) | Aug 30, 2025 |
| 2156 | National Day Celebration | 38%(204/525) | Apr 17, 2025 |
| 2157 | Maze | 31%(1548/4948) | May 19, 2025 |
| 2158 | A Difficult Mathematics Problem | 34%(140/405) | May 19, 2025 |
| 2159 | Ancient Cipher | 32%(13661/42221) | Aug 17, 2025 |
| 2160 | Box | 36%(1606/4457) | May 23, 2025 |
| 2161 | Chandelier | 37%(503/1347) | Aug 30, 2025 |
| 2162 | Document Indexing | 19%(178/927) | Sep 26, 2024 |
| 2163 | Easy Trading | 43%(1153/2681) | May 20, 2025 |
| 2164 | Find the Border | 24%(180/732) | Oct 23, 2024 |
| 2165 | Gunman | 36%(531/1457) | Nov 9, 2024 |
| 2166 | Heapsort | 50%(791/1565) | Jun 27, 2025 |
| 2167 | Irrelevant Elements | 24%(688/2791) | Aug 1, 2025 |
| 2168 | Joke with Turtles | 27%(378/1383) | Aug 30, 2025 |
| 2169 | Kingdom of Magic | 26%(299/1125) | Jun 24, 2025 |
| 2170 | Lattice Animals | 24%(237/963) | May 5, 2025 |
| 2171 | Amusing Numbers | 39%(514/1311) | Aug 27, 2025 |
| 2172 | Bricks | 29%(426/1455) | May 13, 2025 |
| 2173 | Cricket Field | 38%(380/984) | May 19, 2025 |
| 2174 | Decoding Task | 43%(545/1254) | Aug 16, 2024 |
| 2175 | Evacuation Plan | 25%(1919/7605) | Jun 18, 2025 |
| 2176 | Folding | 33%(805/2410) | Aug 9, 2025 |
| 2177 | Ghost Busters | 46%(154/332) | May 19, 2025 |
| 2178 | Heroes Of Might And Magic | 22%(239/1047) | Aug 26, 2025 |
| 2179 | Inlay Cutters | 41%(1019/2432) | Aug 25, 2025 |
| 2180 | Bale Figures | 45%(406/891) | Apr 26, 2025 |
| 2181 | Jumping Cows | 58%(5132/8704) | Aug 17, 2025 |
| 2182 | Lost Cows | 60%(12417/20530) | Aug 17, 2025 |
| 2183 | Bovine Math Geniuses | 60%(2226/3697) | May 22, 2025 |
| 2184 | Cow Exhibition | 40%(8385/20592) | Aug 24, 2025 |
| 2185 | Milking Grid | 43%(5267/12230) | Aug 24, 2025 |
| 2186 | Popular Cows | 40%(20263/49850) | Aug 31, 2025 |
| 2187 | Beauty Contest | 30%(15576/51163) | Aug 26, 2025 |
| 2188 | Cow Laundry | 62%(951/1512) | May 22, 2025 |
| 2189 | Romeo Meets Juliet | 45%(736/1634) | Jun 1, 2025 |
| 2190 | ISBN | 34%(5999/17148) | Jun 21, 2025 |
| 2191 | Mersenne Composite Numbers | 46%(1253/2716) | May 12, 2025 |
| 2192 | Zipper | 35%(7478/20776) | May 20, 2025 |
| 2193 | Lenny's Lucky Lotto Lists | 43%(1006/2306) | May 19, 2025 |
| 2194 | Stacking Cylinders | 49%(831/1691) | May 27, 2025 |
| 2195 | Going Home | 49%(15723/32082) | Aug 30, 2025 |
| 2196 | Specialized Four-Digit Numbers | 66%(10553/15756) | Aug 17, 2025 |
| 2197 | Jill's Tour Paths | 29%(498/1712) | Aug 14, 2025 |
| 2198 | Boundaries on | 29%(126/434) | Aug 29, 2025 |
| 2199 | Rate of Return | 39%(677/1699) | May 20, 2025 |
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