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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 |
|---|---|---|---|
| 1826 | The Best Farm | 354 | Atlas of rruucc@POJ |
| 1827 | A Bunch Of Monsters | 278 | Atlas of rruucc@POJ |
| 1828 | Monkeys' Pride | 2263 | Atlas of rruucc@POJ |
| 1921 | Paper Cut | 53 | Beijing 2004 Preliminary@POJ |
| 1922 | Ride to School | 6835 | Beijing 2004 Preliminary@POJ |
| 1923 | Fourier's Lines | 638 | Beijing 2004 Preliminary@POJ |
| 1924 | The Treasure | 287 | Beijing 2004 Preliminary@POJ |
| 1925 | Spiderman | 980 | Beijing 2004 Preliminary@POJ |
| 1926 | Pollution | 873 | Beijing 2004 Preliminary@POJ |
| 1927 | Area in Triangle | 732 | Beijing 2004 Preliminary@POJ |
| 1928 | The Peanuts | 2743 | Beijing 2004 Preliminary@POJ |
| 2859 | A rectangle | 285 | Hooyeon Lee (ltdtl@POJ) |
| 2860 | Block game with the Little Prince | 1148 | Hooyeon Lee (ltdtl@POJ) |
| 2861 | Cycle with 6 vertices | 83 | Hooyeon Lee (ltdtl@POJ) |
| 1829 | 火力防御网 | 56 | LIANGLIANG@POJ |
| 1830 | 开关问题 | 2647 | LIANGLIANG@POJ |
| 1390 | Blocks | 1659 | Liu Rujia@POJ |
| 1737 | Connected Graph | 1462 | LouTiancheng@POJ |
| 1738 | An old Stone Game | 651 | LouTiancheng@POJ |
| 1739 | Tony's Tour | 893 | LouTiancheng@POJ |
| 1740 | A New Stone Game | 2877 | LouTiancheng@POJ |
| 1741 | Tree | 4924 | LouTiancheng@POJ |
| 1742 | Coins | 7370 | LouTiancheng@POJ |
| 1743 | Musical Theme | 4462 | LouTiancheng@POJ |
| 1744 | Elevator Stopping Plan | 604 | LouTiancheng@POJ |
| 1664 | 放苹果 | 17303 | lwx@POJ |
| 3594 | Escort of Dr. Who How | 424 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3595 | Full Steiner Topologies | 111 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3596 | Illuminated Planet | 76 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3597 | Polygon Division | 444 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3599 | Pumping Lemma | 71 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3600 | Subimage Recognition | 761 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3602 | Typographical Ligatures | 445 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), frkstyc |
| 3598 | PopKart | 154 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), xfxyjwf |
| 3601 | Tower of Hanoi | 537 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), xfxyjwf |
| 3603 | Zen Puzzle Garden | 32 | PKU Campus 2008 (POJ Founder Monthly Contest – 2008.05.10), xfxyjwf |
| 3738 | Card Game | 73 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Asukalt |
| 3737 | UmBasketella | 2659 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), cyqclark |
| 3739 | Special Squares | 270 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Doraemonok |
| 3735 | Training little cats | 1956 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Facer |
| 3731 | Escape | 373 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Rainer |
| 3732 | Paint Me Less | 95 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Rainer |
| 3733 | Shadow Area | 39 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Rainer |
| 3734 | Blocks | 2796 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), Simon |
| 3736 | Snipe the Sniper | 356 | PKU Campus 2009 (POJ Monthly Contest – 2009.05.17), TN |
| 3218 | Alignments | 210 | PKU Local 2007 (POJ Monthly--2007.04.28), frkstyc |
| 3220 | Context-Free Languages | 130 | PKU Local 2007 (POJ Monthly--2007.04.28), frkstyc |
| 3225 | Help with Intervals | 1590 | PKU Local 2007 (POJ Monthly--2007.04.28), frkstyc |
| 3223 | Football Game | 76 | PKU Local 2007 (POJ Monthly--2007.04.28), frkstyc, text by Ikki |
| 3224 | Go for Lab Cup! | 4433 | PKU Local 2007 (POJ Monthly--2007.04.28), ideas from ava, text and test cases by frkstyc |
| 3219 | Binomial Coefficients | 2446 | PKU Local 2007 (POJ Monthly--2007.04.28), Ikki |
| 3222 | Edge Pairing | 317 | PKU Local 2007 (POJ Monthly--2007.04.28), ufx |
| 3221 | Diamond Puzzle | 664 | PKU Local 2007 (POJ Monthly--2007.04.28), wenxichang |
| 1000 | A+B Problem | 206941 | POJ |
| 1628 | Deduction | 174 | POJ Achilles |
| 2429 | GCD & LCM Inverse | 1417 | POJ Achilles |
| 2482 | Stars in Your Window | 1977 | POJ Contest,Author:kinfkong@ZSU |
| 2483 | Greatest Common Subtree | 121 | POJ Contest,Author:kinfkong@ZSU |
| 2486 | Apple Tree | 2524 | POJ Contest,Author:magicpig@ZSU |
| 2478 | Farey Sequence | 4164 | POJ Contest,Author:Mathematica@ZSU |
| 2479 | Maximum sum | 9919 | POJ Contest,Author:Mathematica@ZSU |
| 2480 | Longge's problem | 2032 | POJ Contest,Author:Mathematica@ZSU |
| 2481 | Cows | 4090 | POJ Contest,Author:Mathematica@ZSU |
| 2484 | A Funny Game | 3281 | POJ Contest,Author:Mathematica@ZSU |
| 2485 | Highways | 10036 | POJ Contest,Author:Mathematica@ZSU |
| 3472 | Holey Square Tiling | 204 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3473 | Stochastic Finite State Automaton | 15 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3474 | Ellipsoid | 16 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3475 | Paper-, er, Transcript-Folding Game | 696 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3476 | A Game with Colored Balls | 336 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3477 | System of Linear Equations | 31 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3478 | Undergraduate Instruction Evaluation | 25 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3479 | RoBa Has a Second Art Gallery! | 63 | POJ Founder Monthly Contest – 2007.12.30, frkstyc |
| 3495 | Bitwise XOR of Arithmetic Progression | 181 | POJ Founder Monthly Contest – 2008.01.31, frkstyc |
| 3496 | Word Hyphenation | 8 | POJ Founder Monthly Contest – 2008.01.31, frkstyc |
| 3493 | Chessboard Puzzle | 216 | POJ Founder Monthly Contest – 2008.01.31, Qi-feng CHEN |
| 3489 | Knapsack I | 259 | POJ Founder Monthly Contest – 2008.01.31, xfxyjwf |
| 3490 | Jumping Frogs | 36 | POJ Founder Monthly Contest – 2008.01.31, xfxyjwf |
| 3491 | Rotated Sky Charts | 22 | POJ Founder Monthly Contest – 2008.01.31, xfxyjwf |
| 3492 | Knapsack II | 289 | POJ Founder Monthly Contest – 2008.01.31, xfxyjwf |
| 3494 | Largest Submatrix of All 1’s | 1885 | POJ Founder Monthly Contest – 2008.01.31, xfxyjwf |
| 3532 | Resistance | 268 | POJ Founder Monthly Contest – 2008.03.16, g201513 |
| 3533 | Light Switching Game | 244 | POJ Founder Monthly Contest – 2008.03.16, g201513 |
| 3529 | Matrix Analysis | 28 | POJ Founder Monthly Contest – 2008.03.16, Gao Yihan |
| 3530 | A Modular Arithmetic Challenge | 194 | POJ Founder Monthly Contest – 2008.03.16, Gao Yihan |
| 3534 | Escape of Life and Death | 200 | POJ Founder Monthly Contest – 2008.03.16, Gao Yihan |
| 3527 | Generalized Connect Four | 44 | POJ Founder Monthly Contest – 2008.03.16, Jiang Liyang |
| 3528 | Ultimate Weapon | 574 | POJ Founder Monthly Contest – 2008.03.16, Jiang Liyang |
| 3531 | Alternating Sum of Digits | 38 | POJ Founder Monthly Contest – 2008.03.16, ShiningMoon |
| 3583 | Text Message Formatting | 95 | POJ Founder Monthly Contest – 2008.04.13, frkstyc |
| 3584 | Small Polynomial Factorization | 10 | POJ Founder Monthly Contest – 2008.04.13, frkstyc |
| 3577 | Global Positioning System | 74 | POJ Founder Monthly Contest – 2008.04.13, Lei Tao |
| 3578 | Card Game | 57 | POJ Founder Monthly Contest – 2008.04.13, Lei Tao |
| 3579 | Median | 2988 | POJ Founder Monthly Contest – 2008.04.13, Lei Tao |
| 3582 | Last Hit | 6 | POJ Founder Monthly Contest – 2008.04.13, TN |
| 3580 | SuperMemo | 1851 | POJ Founder Monthly Contest – 2008.04.13, Yao Jinyu |
| 3581 | Sequence | 942 | POJ Founder Monthly Contest – 2008.04.13, Yao Jinyu |
| 3605 | Sheryl's Circuit I | 370 | POJ Founder Monthly Contest – 2008.06.29, Dagger |
| 3606 | Sheryl's Circuit II | 144 | POJ Founder Monthly Contest – 2008.06.29, Dagger |
| 3609 | Reset Sequence | 251 | POJ Founder Monthly Contest – 2008.06.29, frkstyc |
| 3610 | Maclaurin Series of Reciprocals | 26 | POJ Founder Monthly Contest – 2008.06.29, frkstyc |
| 3611 | Minimum Weighted Perfect Fractional b-Matching | 36 | POJ Founder Monthly Contest – 2008.06.29, frkstyc |
| 3607 | Distribution of Toys | 147 | POJ Founder Monthly Contest – 2008.06.29, Huang Jinsong |
| 3608 | Bridge Across Islands | 1211 | POJ Founder Monthly Contest – 2008.06.29, Lei Tao |
| 3604 | Professor Ben | 1200 | POJ Founder Monthly Contest – 2008.06.29, Lin Ben |
| 3676 | Tomorrow Genius 2008 | 12 | POJ Founder Monthly Contest – 2008.07.27, Dagger |
| 3678 | Katu Puzzle | 2630 | POJ Founder Monthly Contest – 2008.07.27, Dagger |
| 3677 | Chemical Weighing | 43 | POJ Founder Monthly Contest – 2008.07.27, Facer |
| 3679 | The Delivery of Control | 40 | POJ Founder Monthly Contest – 2008.07.27, Facer and Dagger |
| 3674 | Super Assassin | 332 | POJ Founder Monthly Contest – 2008.07.27, Mars |
| 3675 | Telescope | 578 | POJ Founder Monthly Contest – 2008.07.27, Updog |
| 3680 | Intervals | 1779 | POJ Founder Monthly Contest – 2008.07.27, windy7926778 |
| 3681 | Finding the Rectangle | 704 | POJ Founder Monthly Contest – 2008.07.27, windy7926778 |
| 3683 | Priest John's Busiest Day | 2211 | POJ Founder Monthly Contest – 2008.08.31, Dagger and Facer |
| 3688 | Cheat in the Game | 341 | POJ Founder Monthly Contest – 2008.08.31, facer |
| 3689 | Equations | 74 | POJ Founder Monthly Contest – 2008.08.31, Lei, Tao |
| 3684 | Physics Experiment | 1049 | POJ Founder Monthly Contest – 2008.08.31, Simon |
| 3682 | King Arthur's Birthday Celebration | 824 | POJ Founder Monthly Contest – 2008.08.31, Soduku@POJ |
| 3685 | Matrix | 1384 | POJ Founder Monthly Contest – 2008.08.31, windy7926778 |
| 3686 | The Windy's | 1410 | POJ Founder Monthly Contest – 2008.08.31, windy7926778 |
| 3687 | Labeling Balls | 2940 | POJ Founder Monthly Contest – 2008.08.31, windy7926778 |
| 3703 | Intuition of Escape | 60 | POJ Founder Monthly Contest – 2008.10.05, cyqclark |
| 3699 | miniSQL | 505 | POJ Founder Monthly Contest – 2008.10.05, Dagger |
| 3700 | Missile Defence System | 723 | POJ Founder Monthly Contest – 2008.10.05, facer |
| 3704 | Mover | 41 | POJ Founder Monthly Contest – 2008.10.05, Lou Tiancheng |
| 3705 | Reverse | 794 | POJ Founder Monthly Contest – 2008.10.05, Lou Tiancheng |
| 3706 | System Test | 38 | POJ Founder Monthly Contest – 2008.10.05, Lou Tiancheng |
| 3702 | Chessman | 440 | POJ Founder Monthly Contest – 2008.10.05, windy7926778 |
| 3701 | Rubik's Cube: 0-1 Version | 31 | POJ Founder Monthly Contest – 2008.10.05, withleave |
| 3712 | Edges and More Edges | 147 | POJ Founder Monthly Contest – 2008.12.28, Dagger |
| 3713 | Transferring Sylla | 445 | POJ Founder Monthly Contest – 2008.12.28, Dagger |
| 3714 | Raid | 4379 | POJ Founder Monthly Contest – 2008.12.28, Dagger |
| 3707 | High-Dimensional Vector Correspondence | 16 | POJ Founder Monthly Contest – 2008.12.28, frkstyc |
| 3711 | Mayan Pyramid | 242 | POJ Founder Monthly Contest – 2008.12.28, Panda |
| 3709 | K-Anonymous Sequence | 1154 | POJ Founder Monthly Contest – 2008.12.28, Rainer |
| 3708 | Recurrent Function | 217 | POJ Founder Monthly Contest – 2008.12.28, Yaojinyu |
| 3710 | Christmas Game | 571 | POJ Founder Monthly Contest – 2008.12.28, Yaojinyu |
| 1810 | Covering | 128 | POJ Monthly |
| 1811 | Prime Test | 3475 | POJ Monthly |
| 1812 | Zuma Game | 95 | POJ Monthly |
| 1813 | Overlapped Shapes | 149 | POJ Monthly |
| 1814 | Polynomial | 16 | POJ Monthly |
| 1815 | Friendship | 1360 | POJ Monthly |
| 1816 | Wild Words | 887 | POJ Monthly |
| 3745 | Keep Contact | 11 | POJ Monthly Contest - 2009.08.23, Elaxia |
| 3743 | LL’s cake | 91 | POJ Monthly Contest - 2009.08.23, Isun |
| 3746 | Teacher YYF | 212 | POJ Monthly Contest - 2009.08.23, Jason |
| 3740 | Easy Finding | 2288 | POJ Monthly Contest - 2009.08.23, MasterLuo |
| 3744 | Scout YYF I | 1755 | POJ Monthly Contest - 2009.08.23, Simon |
| 3747 | Scout YYF II | 244 | POJ Monthly Contest - 2009.08.23, Simon |
| 3741 | Number System Converter | 146 | POJ Monthly Contest - 2009.08.23, wjn |
| 3742 | Equivalent Polynomial | 384 | POJ Monthly Contest - 2009.08.23, wjn |
| 3758 | The story of three kingdoms XI | 25 | POJ Monthly Contest - 2010.04.04, 1318dotaer |
| 3755 | The Training of Chain Lightning | 28 | POJ Monthly Contest - 2010.04.04, Mars |
| 3756 | Chess Game | 223 | POJ Monthly Contest - 2010.04.04, Mars |
| 3757 | Simple Distributed storage system | 217 | POJ Monthly Contest - 2010.04.04, Yao Jinyu |
| 3759 | Simple Distributed computing system | 64 | POJ Monthly Contest - 2010.04.04, Yao Jinyu |
| 3721 | Darkterror's Combos | 57 | POJ Monthly Contest – 2009.02.22, Dagger |
| 3722 | We're Going In | 17 | POJ Monthly Contest – 2009.02.22, Dagger |
| 3717 | Decrypt the Dragon Scroll | 109 | POJ Monthly Contest – 2009.02.22, Facer |
| 3718 | Facer's Chocolate Dream | 119 | POJ Monthly Contest – 2009.02.22, Facer |
| 3720 | Occurrence of Digits | 1351 | POJ Monthly Contest – 2009.02.22, Lei Tao |
| 3719 | Art of Balance | 152 | POJ Monthly Contest – 2009.02.22, Mars |
| 3716 | Panda's Birthday Present | 927 | POJ Monthly Contest – 2009.02.22, Simon |
| 3715 | Blue and Red | 523 | POJ Monthly Contest – 2009.02.22, Windy |
| 3729 | Facer’s string | 325 | POJ Monthly Contest – 2009.04.05, Facer |
| 3728 | The merchant | 1059 | POJ Monthly Contest – 2009.04.05, GaoYihan |
| 3730 | Ebbinghaus method | 62 | POJ Monthly Contest – 2009.04.05, geniushjs |
| 3727 | Newton’s Method | 127 | POJ Monthly Contest – 2009.04.05, longpo |
| 3724 | Find the parameter | 399 | POJ Monthly Contest – 2009.04.05, Simon |
| 3726 | Windy's ABC | 192 | POJ Monthly Contest – 2009.04.05, windy7926778 |
| 3723 | Conscription | 3944 | POJ Monthly Contest – 2009.04.05, windy7926778 |
| 3725 | I know the k-th integer | 421 | POJ Monthly Contest – 2009.04.05, windy7926778 |
| 2438 | Children's Dining | 434 | POJ Monthly,anonymous |
| 2444 | Partition a Matrix | 436 | POJ Monthly,c0500301036 |
| 2446 | Chessboard | 3449 | POJ Monthly,charlescpp |
| 2310 | Cubic Tick-Tack-Toe | 43 | POJ Monthly,CHEN Shixi(xreborner) |
| 2311 | Cutting Game | 1551 | POJ Monthly,CHEN Shixi(xreborner) |
| 2233 | GAME AGAIN! | 136 | POJ Monthly,dodo |
| 2442 | Sequence | 2009 | POJ Monthly,Guang Lin |
| 2445 | Squares | 99 | POJ Monthly,Guang Lin |
| 2236 | Wireless Network | 7399 | POJ Monthly,HQM |
| 2237 | Can 1 Marine win 2 Zerglings? | 49 | POJ Monthly,HQM |
| 2235 | Triangularize the Convex Hull | 35 | POJ Monthly,kicc |
| 2314 | POJ language | 68 | POJ Monthly,kicc |
| 2153 | Rank List | 1995 | POJ Monthly,Li Haoyuan |
| 2239 | Selecting Courses | 3520 | POJ Monthly,Li Haoyuan |
| 2156 | National Day Celebration | 101 | POJ Monthly,Loger |
| 2152 | Fire | 705 | POJ Monthly,Lou Tiancheng |
| 2154 | Color | 1848 | POJ Monthly,Lou Tiancheng |
| 2155 | Matrix | 6427 | POJ Monthly,Lou Tiancheng |
| 2309 | BST | 5043 | POJ Monthly,Minkerui |
| 2313 | Sequence | 1234 | POJ Monthly,Minkerui |
| 2443 | Set Operation | 1068 | POJ Monthly,Minkerui |
| 2448 | A New Operating System | 84 | POJ Monthly,Minkerui |
| 2234 | Matches Game | 5207 | POJ Monthly,readchild |
| 1817 | Traffic Jam | 110 | POJ Monthly,Southeast USA 1999 |
| 2440 | DNA | 1141 | POJ Monthly,Static |
| 2447 | RSA | 412 | POJ Monthly,static |
| 2452 | Sticks Problem | 1931 | POJ Monthly,static |
| 2441 | Arrange the Bulls | 1309 | POJ Monthly,TN |
| 2315 | Football Game | 164 | POJ Monthly,uni |
| 2157 | Maze | 995 | POJ Monthly,Wang Yijie |
| 2308 | Dearboy's Puzzle | 194 | POJ Monthly,Wang Yijie |
| 2453 | An Easy Problem | 4188 | POJ Monthly,zby03 |
| 2439 | Disconnect the Orange!? | 70 | POJ Monthly,Zeyuan Zhu |
| 2449 | Remmarguts' Date | 5178 | POJ Monthly,Zeyuan Zhu |
| 2450 | A New Kind of Chess | 38 | POJ Monthly,Zeyuan Zhu |
| 2451 | Uyuw's Concert | 1421 | POJ Monthly,Zeyuan Zhu |
| 2158 | A Difficult Mathematics Problem | 104 | POJ Monthly,李学武 |
| 2232 | New Stone-Forfex-Cloth Game | 499 | POJ Monthly,汪艺杰 |
| 2151 | Check the difficulty of problems | 2330 | POJ Monthly,鲁小石 |
| 2238 | Computer Basketball Game | 94 | POJ Monthly,鲁小石 |
| 2312 | Battle City | 2366 | POJ Monthly,鲁小石 |
| 1659 | Frogs' Neighborhood | 3100 | POJ Monthly--2004.05.15 Alcyone@pku |
| 1662 | CoIns | 191 | POJ Monthly--2004.05.15 BearL@pku |
| 1661 | Help Jimmy | 3158 | POJ Monthly--2004.05.15 CEOI 2000 |
| 1660 | Princess FroG | 404 | POJ Monthly--2004.05.15 duoshute@pku |
| 1655 | Balancing Act | 5080 | POJ Monthly--2004.05.15 IOI 2003 sample task |
| 1654 | Area | 3553 | POJ Monthly--2004.05.15 Liu Rujia@POJ |
| 1656 | Counting Black | 6335 | POJ Monthly--2004.05.15 Liu Rujia@POJ |
| 1657 | Distance on Chessboard | 8066 | POJ Monthly--2004.05.15 Liu Rujia@POJ |
| 1658 | Eva's Problem | 10135 | POJ Monthly--2004.05.15 Null |
| 1682 | Clans on the Three Gorges | 309 | POJ Monthly--2004.06.27 epic |
| 1675 | Happy Birthday! | 885 | POJ Monthly--2004.06.27 srbga@POJ |
| 1677 | Girls' Day | 578 | POJ Monthly--2004.06.27 srbga@POJ |
| 1678 | I Love this Game! | 714 | POJ Monthly--2004.06.27 srbga@POJ |
| 1679 | The Unique MST | 6399 | POJ Monthly--2004.06.27 srbga@POJ |
| 1680 | Fork() Makes Trouble | 299 | POJ Monthly--2004.06.27 srbga@POJ |
| 1681 | Painter's Problem | 2163 | POJ Monthly--2004.06.27 张嘉龄 |
| 1674 | Sorting by Swapping | 4054 | POJ Monthly--2004.06.27 弱人 |
| 1676 | What time is it? | 626 | POJ Monthly--2004.06.27 鄂继明 |
| 1698 | Alice's Chance | 1893 | POJ Monthly--2004.07.18 |
| 1699 | Best Sequence | 3077 | POJ Monthly--2004.07.18 |
| 1700 | Crossing River | 6136 | POJ Monthly--2004.07.18 |
| 1701 | Dissatisfying Lift | 1013 | POJ Monthly--2004.07.18 |
| 1702 | Eva's Balance | 1727 | POJ Monthly--2004.07.18 |
| 1703 | Find them, Catch them | 8925 | POJ Monthly--2004.07.18 |
| 1704 | Georgia and Bob | 3163 | POJ Monthly--2004.07.18 |
| 1705 | Generational Replacement | 75 | POJ Monthly--2004.07.18 |
| 2519 | Cutting Necklace | 80 | POJ Monthly--2005.07.31, CHEN Shixi |
| 2520 | DNA Sequence Alignment | 76 | POJ Monthly--2005.07.31, CHEN Shixi |
| 2518 | Little guys' game | 108 | POJ Monthly--2005.07.31, Huang Ninghai |
| 2514 | Ridiculous Addition | 307 | POJ Monthly--2005.07.31, Islamic Azad University of Mashhad – Collegiate Coding Challenge 1 |
| 2517 | Cover | 23 | POJ Monthly--2005.07.31, LouTianCheng |
| 2516 | Minimum Cost | 3200 | POJ Monthly--2005.07.31, Wang Yijie |
| 2521 | How much did the businessman lose | 6905 | POJ Monthly--2005.07.31, Wang Yijie |
| 2515 | Birthday Cake | 252 | POJ Monthly--2005.07.31, Zeyuan Zhu |
| 2592 | Standard Point System | 106 | POJ Monthly--2005.08.28,anonymous |
| 2596 | Dice Stacking | 311 | POJ Monthly--2005.08.28,Huang Ninghai |
| 2598 | Match Throwing Game | 258 | POJ Monthly--2005.08.28,kicc |
| 2593 | Max Sequence | 6067 | POJ Monthly--2005.08.28,Li Haoyuan |
| 2594 | Treasure Exploration | 2617 | POJ Monthly--2005.08.28,Li Haoyuan |
| 2591 | Set Definition | 3437 | POJ Monthly--2005.08.28,Static |
| 2595 | Min-Max | 281 | POJ Monthly--2005.08.28,Static |
| 2597 | Line Segment Erase | 347 | POJ Monthly--2005.08.28,Static |
| 2748 | Logs Stacking | 802 | POJ Monthly--2006.01.22,anonymous |
| 2751 | Saving Endeavour | 692 | POJ Monthly--2006.01.22,anonymous |
| 2755 | Dominoes | 38 | POJ Monthly--2006.01.22,Loger |
| 2750 | Potted Flower | 1379 | POJ Monthly--2006.01.22,Zeyuan Zhu |
| 2752 | Seek the Name, Seek the Fame | 7008 | POJ Monthly--2006.01.22,Zeyuan Zhu |
| 2753 | Similarity of necklaces | 35 | POJ Monthly--2006.01.22,Zeyuan Zhu |
| 2754 | Similarity of necklaces 2 | 179 | POJ Monthly--2006.01.22,Zeyuan Zhu |
| 2749 | Building roads | 1425 | POJ Monthly--2006.01.22,zhucheng |
| 2756 | Autumn is a Genius | 1498 | POJ Monthly--2006.02.26,zgl & twb |
| 2757 | Beautiful Numbers | 112 | POJ Monthly--2006.02.26,zgl & twb |
| 2758 | Checking the Text | 467 | POJ Monthly--2006.02.26,zgl & twb |
| 2759 | Distributing tasks | 156 | POJ Monthly--2006.02.26,zgl & twb |
| 2760 | End of Windless Days | 183 | POJ Monthly--2006.02.26,zgl & twb |
| 2761 | Feed the dogs | 3019 | POJ Monthly--2006.02.26,zgl & twb |
| 2762 | Going from u to v or from v to u? | 2875 | POJ Monthly--2006.02.26,zgl & twb |
| 2763 | Housewife Wind | 1752 | POJ Monthly--2006.02.26,zgl & twb |
| 2777 | Count Color | 7919 | POJ Monthly--2006.03.26,dodo |
| 2778 | DNA Sequence | 2954 | POJ Monthly--2006.03.26,dodo |
| 2775 | The Number of the Same BST | 422 | POJ Monthly--2006.03.26,newton88518 |
| 2773 | Happy 2006 | 2564 | POJ Monthly--2006.03.26,static |
| 2780 | Linearity | 1200 | POJ Monthly--2006.03.26,static |
| 2774 | Long Long Message | 5348 | POJ Monthly--2006.03.26,Zeyuan Zhu,"Dedicate to my great beloved mother." |
| 2779 | Atom Bombs!? God! | 44 | POJ Monthly--2006.03.26,Zeyuan Zhu,Modified from NEERC2005 Area |
| 2776 | Cheat at Math | 18 | POJ Monthly--2006.03.26,Zeyuan Zhu,Modified from Timus 1429 |
| 2825 | Perfect Permutation | 152 | POJ Monthly--2006.04.28, Dagger@PKU_RPWT |
| 2826 | An Easy Problem?! | 1272 | POJ Monthly--2006.04.28, Dagger@PKU_RPWT |
| 2819 | TN's Kingdom I - Establishment | 181 | POJ Monthly--2006.04.28, frkstyc@PKU_RPWT |
| 2820 | TN's Kingdom II - Construction | 38 | POJ Monthly--2006.04.28, frkstyc@PKU_RPWT |
| 2821 | TN's Kingdom III - Assassination | 75 | POJ Monthly--2006.04.28, frkstyc@PKU_RPWT |
| 2822 | TN's Kingdom IV - Collapse | 78 | POJ Monthly--2006.04.28, frkstyc@PKU_RPWT |
| 2823 | Sliding Window | 9589 | POJ Monthly--2006.04.28, Ikki |
| 2824 | Bohemian Rhapsody | 18 | POJ Monthly--2006.04.28, TN@PKU_RPWT |
| 2834 | Where Are You? | 172 | POJ Monthly--2006.05.28, Judas |
| 2829 | How Many Free Dimensions? | 26 | POJ Monthly--2006.05.28, Liang, Shaochi |
| 2827 | Auto-Calculation Machine | 347 | POJ Monthly--2006.05.28, Static |
| 2830 | Max Sequence II | 84 | POJ Monthly--2006.05.28, Static |
| 2833 | The Average | 2603 | POJ Monthly--2006.05.28, zby03 |
| 2828 | Buy Tickets | 5927 | POJ Monthly--2006.05.28, Zhu, Zeyuan |
| 2831 | Can We Build This One? | 448 | POJ Monthly--2006.05.28, zhucheng |
| 2832 | How Many Pairs? | 450 | POJ Monthly--2006.05.28, zhucheng |
| 2843 | Cutting Cake | 134 | POJ Monthly--2006.06.25, Chen Xue |
| 2837 | Silver Matrix | 574 | POJ Monthly--2006.06.25, Lei Tao |
| 2840 | Big Clock | 5932 | POJ Monthly--2006.06.25, Lei Tao |
| 2839 | Convex Hull and Triangle | 30 | POJ Monthly--2006.06.25, Long Fan |
| 2842 | N-dimension Matching | 85 | POJ Monthly--2006.06.25, Long Fan |
| 2841 | Navigation Game | 67 | POJ Monthly--2006.06.25, Yang Yi |
| 2844 | Sum and Product | 74 | POJ Monthly--2006.06.25, Yang Yi |
| 2838 | Graph Connectivity | 503 | POJ Monthly--2006.06.25, Zheng Zhao |
| 2888 | Magic Bracelet | 1036 | POJ Monthly--2006.07.30, cuiaoxiang |
| 2893 | M × N Puzzle | 861 | POJ Monthly--2006.07.30, newton88518 |
| 2886 | Who Gets the Most Candies? | 2530 | POJ Monthly--2006.07.30, Sempr |
| 2890 | Matrix Multiplication | 371 | POJ Monthly--2006.07.30, Static |
| 2891 | Strange Way to Express Integers | 3540 | POJ Monthly--2006.07.30, Static |
| 2892 | Tunnel Warfare | 2314 | POJ Monthly--2006.07.30, updog |
| 2889 | Unique Solution | 166 | POJ Monthly--2006.07.30, Wang, Yijie |
| 2887 | Big String | 1184 | POJ Monthly--2006.07.30, zhucheng |
| 2982 | Time Travel | 370 | POJ Monthly--2006.08.27, Dagger |
| 2983 | Is the Information Reliable? | 2352 | POJ Monthly--2006.08.27, Dagger |
| 2981 | Deal of Fortune | 21 | POJ Monthly--2006.08.27, frkstyc |
| 2987 | Firing | 1707 | POJ Monthly--2006.08.27, frkstyc |
| 2988 | Function Approximation | 40 | POJ Monthly--2006.08.27, frkstyc |
| 2986 | A Triangle and a Circle | 442 | POJ Monthly--2006.08.27, Rainer |
| 2984 | A New Joseph Problem | 475 | POJ Monthly--2006.08.27, zcgzcgzcg |
| 2985 | The k-th Largest Group | 1738 | POJ Monthly--2006.08.27, zcgzcgzcg |
| 3015 | Expected Difference | 260 | POJ Monthly--2006.09.29, ACRush |
| 3016 | K-Monotonic | 262 | POJ Monthly--2006.09.29, ACRush, modified from TopCoder SRM 309 KMonotonic |
| 3012 | A Number from Yanghui Triangle | 624 | POJ Monthly--2006.09.29, Kim, Chan Min (kcm1700@POJ) |
| 3013 | Big Christmas Tree | 2529 | POJ Monthly--2006.09.29, Kim, Chan Min (kcm1700@POJ) |
| 3014 | Cake Pieces and Plates | 1189 | POJ Monthly--2006.09.29, Kim, Chan Min (kcm1700@POJ) |
| 3018 | Giftbox | 744 | POJ Monthly--2006.09.29, sza |
| 3019 | Image Rotation | 17 | POJ Monthly--2006.09.29, zby03 |
| 3017 | Cut the Sequence | 1941 | POJ Monthly--2006.09.29, zhucheng |
| 3162 | Walking Race | 582 | POJ Monthly--2006.12.31, flymouse |
| 3163 | King of Fighters | 86 | POJ Monthly--2006.12.31, flymouse |
| 3161 | Numerical Integration | 4 | POJ Monthly--2006.12.31, galaxy |
| 3164 | Command Network | 2332 | POJ Monthly--2006.12.31, galaxy |
| 3159 | Candies | 4468 | POJ Monthly--2006.12.31, Sempr |
| 3160 | Father Christmas flymouse | 716 | POJ Monthly--2006.12.31, Sempr |
| 3165 | Traveling Trio | 19 | POJ Monthly--2006.12.31, Zhu, Zeyuan |
| 3166 | Jumping Frog | 73 | POJ Monthly--2006.12.31, Zhu, Zeyuan |
| 3202 | A Very Simple Compiler | 4 | POJ Monthly--2007.03.04, Hou, Qiming |
| 3203 | Incremental Python Parsing | 8 | POJ Monthly--2007.03.04, Hou, Qiming |
| 3204 | Ikki's Story I - Road Reconstruction | 1339 | POJ Monthly--2007.03.04, Ikki |
| 3205 | Ikki's Story II - War with TN | 175 | POJ Monthly--2007.03.04, Ikki |
| 3206 | Ikki's Story III - Rescue frkstyc! | 95 | POJ Monthly--2007.03.04, Ikki |
| 3207 | Ikki's Story IV - Panda's Trick | 2616 | POJ Monthly--2007.03.04, Ikki |
| 3209 | From Pythagoras to … | 205 | POJ Monthly--2007.03.04, Ikki |
| 3208 | Apocalypse Someday | 950 | POJ Monthly--2007.03.04, Ikki, adapted from TCHS SRM 2 ApocalypseSomeday |
| 3216 | Repairing Company | 1340 | POJ Monthly--2007.04.01, crazyb0y |
| 3214 | Heap | 438 | POJ Monthly--2007.04.01, czh |
| 3211 | Washing Clothes | 2209 | POJ Monthly--2007.04.01, dearboy |
| 3215 | Median of Lines | 134 | POJ Monthly--2007.04.01, dearboy |
| 3217 | Eugenics | 262 | POJ Monthly--2007.04.01, Huang, Jinsong |
| 3212 | Rescue Alice | 276 | POJ Monthly--2007.04.01, Liu, Cheng |
| 3210 | Coins | 4408 | POJ Monthly--2007.04.01, Snoopy |
| 3213 | PM3 | 989 | POJ Monthly--2007.04.01, zhucheng |
| 3233 | Matrix Power Series | 6955 | POJ Monthly--2007.06.03, Huang, Jinsong |
| 3240 | Solution to the n2 − 1 Puzzle | 44 | POJ Monthly--2007.06.03, Huang, Jinsong |
| 3234 | The Kylin Den | 15 | POJ Monthly--2007.06.03, Jia, You |
| 3236 | Michelle's Evaluation | 64 | POJ Monthly--2007.06.03, Jia, You |
| 3235 | Super Knight | 40 | POJ Monthly--2007.06.03, Lei, Tao |
| 3237 | Tree | 1307 | POJ Monthly--2007.06.03, Lei, Tao |
| 3238 | A Coin Game | 73 | POJ Monthly--2007.06.03, Yao, Jinyu |
| 3239 | Solution to the n Queens Puzzle | 1272 | POJ Monthly--2007.06.03, Yao, Jinyu |
| 3245 | Sequence Partitioning | 199 | POJ Monthly--2007.07.08, Chen, Danqi |
| 3242 | 3-dimensional Musical Water-fence | 27 | POJ Monthly--2007.07.08, Chen, Qifeng |
| 3248 | Soldier | 63 | POJ Monthly--2007.07.08, Chen, Qifeng |
| 3243 | Clever Y | 1027 | POJ Monthly--2007.07.08, Guo, Huayang |
| 3247 | Robots | 7 | POJ Monthly--2007.07.08, Guo, Huayang |
| 3246 | Game | 247 | POJ Monthly--2007.07.08, Wang, Dong |
| 3244 | Difference between Triplets | 623 | POJ Monthly--2007.07.08, Yuan, Xinhao |
| 3249 | Test for Job | 1624 | POJ Monthly--2007.07.08, 落叶飞雪 |
| 3324 | Lucas-Lehmer Test | 95 | POJ Monthly--2007.08.05, frkstyc |
| 3319 | Dragon Slayer Qualification Exam | 81 | POJ Monthly--2007.08.05, Hooyeon Lee (ltdtl@POJ), "I like dragons" |
| 3321 | Apple Tree | 6278 | POJ Monthly--2007.08.05, Huang, Jinsong |
| 3320 | Jessica's Reading Problem | 4187 | POJ Monthly--2007.08.05, Jerry |
| 3241 | Object Clustering | 435 | POJ Monthly--2007.08.05, Li, Haoyuan |
| 3318 | Matrix Multiplication | 3197 | POJ Monthly--2007.08.05, qzc |
| 3322 | Bloxorz I | 1478 | POJ Monthly--2007.08.05, Rainer |
| 3323 | Bloxorz II | 139 | POJ Monthly--2007.08.05, Rainer |
| 3372 | Candy Distribution | 2772 | POJ Monthly--2007.09.09, ailyanlu@zsu |
| 3377 | Ferry Lanes | 637 | POJ Monthly--2007.09.09, Dagger |
| 3371 | Flesch Reading Ease | 498 | POJ Monthly--2007.09.09, frkstyc |
| 3373 | Changing Digits | 793 | POJ Monthly--2007.09.09, Rainer |
| 3378 | Crazy Thairs | 1107 | POJ Monthly--2007.09.09, tdzl2003 |
| 3374 | Cake Share | 603 | POJ Monthly--2007.09.09, Updog |
| 3375 | Network Connection | 465 | POJ Monthly--2007.09.09, Updog |
| 3376 | Finding Palindromes | 390 | POJ Monthly--2007.09.09, Zhou Gelin, modified from POI06 |
| 3421 | X-factor Chains | 2000 | POJ Monthly--2007.10.06, ailyanlu@zsu |
| 3418 | Quadratic Functions | 100 | POJ Monthly--2007.10.06, Amber(hupo001)@POJ |
| 3420 | Quad Tiling | 1587 | POJ Monthly--2007.10.06, Dagger |
| 3422 | Kaka's Matrix Travels | 2222 | POJ Monthly--2007.10.06, Huang, Jinsong |
| 3419 | Difference Is Beautiful | 462 | POJ Monthly--2007.10.06, SHOIT@ZSU |
| 3416 | Crossing | 540 | POJ Monthly--2007.10.06, Wang Dong |
| 3415 | Common Substrings | 2164 | POJ Monthly--2007.10.06, wintokk |
| 3417 | Network | 1471 | POJ Monthly--2007.10.06, Yang Mu |
| 3464 | Approximations | 21 | POJ Monthly--2007.11.25, Yang Yi |
| 3465 | Battle | 404 | POJ Monthly--2007.11.25, Yang Yi |
| 3466 | Distance to the Prey | 14 | POJ Monthly--2007.11.25, Yang Yi |
| 3467 | Cross Counting | 291 | POJ Monthly--2007.11.25, Yang Yi |
| 3468 | A Simple Problem with Integers | 15726 | POJ Monthly--2007.11.25, Yang Yi |
| 3469 | Dual Core CPU | 3721 | POJ Monthly--2007.11.25, Zhou Dong |
| 3470 | Walls | 210 | POJ Monthly--2007.11.25, Zhou Dong |
| 3471 | Integral Roots | 174 | POJ Monthly--2007.11.25, Zhou Dong |
| 1831 | 不定方程组 | 190 | qinlu@POJ |
| 1832 | 连环锁 | 379 | qinlu@POJ |
| 1833 | 排列 | 5617 | qinlu@POJ |
| 1834 | 线段处理 | 57 | qinlu@POJ |
| 1835 | 宇航员 | 1800 | qinlu@POJ |
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