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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 |
| 2950 | Nuclear Plants | 5%(32/568) | Mar 16, 2026 |
| 2981 | Deal of Fortune | 6%(23/369) | Mar 16, 2026 |
| 2915 | Zuma | 7%(202/2641) | Dec 9, 2025 |
| 2936 | Construct the Wall Maze | 8%(59/684) | Mar 16, 2026 |
| 2927 | Constructing Roads | 10%(74/685) | Mar 16, 2026 |
| 2930 | Dialing Dice | 11%(55/467) | Dec 1, 2025 |
| 2999 | Matrix | 12%(25/202) | Mar 6, 2026 |
| 2968 | Necklace | 13%(92/703) | Mar 16, 2026 |
| 2913 | Fly Monkey | 13%(146/1079) | Mar 21, 2026 |
| 2963 | Lazy Evaluation | 14%(17/118) | Oct 18, 2025 |
| 2967 | Triangles | 15%(1205/8023) | Mar 10, 2026 |
| 2982 | Time Travel | 15%(631/4141) | Dec 10, 2025 |
| 2929 | The Traveling Salesman | 15%(37/238) | Dec 1, 2025 |
| 2966 | A safe way | 19%(382/1979) | Mar 16, 2026 |
| 2971 | "Switchback" | 19%(62/315) | Mar 16, 2026 |
| 2916 | The Wolves and the Sheep Plus | 19%(45/228) | Mar 6, 2026 |
| 2905 | Parallel Computer Simulator | 19%(58/291) | Mar 6, 2026 |
| 2972 | Laser-Ball | 22%(50/226) | Dec 10, 2025 |
| 2949 | Word Rings | 22%(2079/9311) | Mar 16, 2026 |
| 2919 | Traveling Queen Problem | 22%(127/559) | Dec 9, 2025 |
| 2932 | Coneology | 22%(1369/5993) | Mar 6, 2026 |
| 2910 | Downpayment | 23%(43/186) | Mar 6, 2026 |
| 2984 | A New Joseph Problem | 23%(922/3967) | Apr 3, 2026 |
| 2986 | A Triangle and a Circle | 23%(990/4247) | Apr 2, 2026 |
| 2970 | The lazy programmer | 23%(1024/4288) | Jan 8, 2026 |
| 2933 | Explaining the Stock Market | 24%(180/742) | Mar 21, 2026 |
| 2969 | Divisibility by 15 | 24%(902/3696) | Apr 3, 2026 |
| 2921 | Knights of the Round Table | 25%(384/1533) | Apr 3, 2026 |
| 2995 | Go Endgame | 25%(111/442) | Apr 5, 2026 |
| 2928 | A City of Skyscrapers | 25%(431/1711) | Nov 24, 2025 |
| 2997 | IVXLCDM | 25%(223/876) | Apr 5, 2026 |
| 2980 | Do it! | 25%(380/1486) | Apr 3, 2026 |
| 2991 | Crane | 25%(3309/12848) | Mar 18, 2026 |
| 2988 | Function Approximation | 26%(130/495) | Mar 16, 2026 |
| 2990 | Board Game | 27%(88/325) | Mar 6, 2026 |
| 2946 | The Warehouse | 27%(460/1690) | Mar 18, 2026 |
| 2977 | Box walking | 27%(675/2456) | Jan 8, 2026 |
| 2962 | Who owns the Amiga? | 27%(41/149) | Mar 6, 2026 |
| 2944 | Wild West | 28%(376/1304) | Apr 3, 2026 |
| 2934 | Automatic Correction of Misspellings | 29%(764/2614) | Apr 3, 2026 |
| 2992 | Divisors | 29%(4256/14468) | Apr 5, 2026 |
| 2989 | All Friends | 29%(1215/4111) | Apr 3, 2026 |
| 2922 | Honeymoon Hike | 29%(1085/3665) | Apr 3, 2026 |
| 2931 | Procrastination | 29%(231/780) | Jan 25, 2026 |
| 2908 | Quantum | 29%(1084/3639) | Apr 3, 2026 |
| 2903 | Joy of Mobile Routing | 29%(79/265) | Mar 6, 2026 |
| 2983 | Is the Information Reliable? | 30%(5558/18239) | Apr 3, 2026 |
| 2987 | Firing | 30%(4146/13535) | Mar 22, 2026 |
| 2937 | Dihedral Groups | 31%(469/1506) | Mar 16, 2026 |
| 2976 | Dropping tests | 31%(11409/35716) | Apr 10, 2026 |
| 2942 | Knights of the Round Table | 32%(5915/18403) | Mar 28, 2026 |
| 2985 | The k-th Largest Group | 32%(3586/11097) | Apr 3, 2026 |
| 2901 | Hotel | 32%(362/1106) | Apr 3, 2026 |
| 2912 | Rochambeau | 32%(3331/10127) | Mar 6, 2026 |
| 2947 | Widget Factory | 33%(3187/9557) | Apr 3, 2026 |
| 2902 | Intercepting Missiles | 33%(88/262) | Dec 9, 2025 |
| 2943 | The Cow Doctor | 34%(583/1708) | Apr 3, 2026 |
| 2938 | Economic Phone Calls | 34%(291/852) | Apr 3, 2026 |
| 2926 | Requirements | 34%(1685/4868) | Jan 7, 2026 |
| 2917 | Diophantus of Alexandria | 35%(1561/4428) | Nov 24, 2025 |
| 2945 | Find the Clones | 35%(3509/9811) | Mar 25, 2026 |
| 2998 | Hardware | 36%(378/1040) | Apr 3, 2026 |
| 2906 | Moving Pianos | 36%(392/1078) | Mar 21, 2026 |
| 2925 | Kick-Tipp | 36%(192/520) | Apr 5, 2026 |
| 2939 | Flavius Josephus Reloaded | 37%(827/2224) | Apr 3, 2026 |
| 2900 | Griddy Hobby | 37%(226/604) | Dec 9, 2025 |
| 2911 | Simplified λ-evaluations | 37%(54/143) | Mar 21, 2026 |
| 2965 | The Pilots Brothers' refrigerator | 38%(15196/39805) | Mar 31, 2026 |
| 2923 | Relocation | 40%(1987/4936) | Apr 3, 2026 |
| 2956 | Repeatless Numbers | 40%(878/2160) | Apr 3, 2026 |
| 2994 | Failing Roads | 40%(215/526) | Apr 3, 2026 |
| 2964 | Tourist | 41%(701/1701) | Apr 3, 2026 |
| 2974 | Convex area | 41%(256/611) | Apr 3, 2026 |
| 2954 | Triangle | 41%(3030/7222) | Apr 3, 2026 |
| 2914 | Minimum Cut | 42%(5482/12959) | Apr 10, 2026 |
| 2958 | Pizza delivery | 42%(600/1413) | Apr 4, 2026 |
| 2957 | Planet Hunting | 42%(254/595) | Nov 24, 2025 |
| 2940 | Wine Trading in Gergovia | 43%(2007/4654) | Apr 3, 2026 |
| 2979 | RSI | 44%(195/441) | Dec 10, 2025 |
| 2952 | Election | 44%(467/1049) | Apr 3, 2026 |
| 2935 | Basic Wall Maze | 44%(1579/3542) | Mar 16, 2026 |
| 2924 | Gauß in Elementary School | 44%(4518/10134) | Nov 26, 2025 |
| 2941 | Homogeneous Squares | 46%(3251/7027) | Dec 21, 2025 |
| 2975 | Nim | 46%(4220/9036) | Jan 18, 2026 |
| 2920 | Mine Map | 46%(520/1108) | Apr 3, 2026 |
| 2978 | Colored stones | 47%(957/2031) | Apr 3, 2026 |
| 2961 | Sylvester construction | 47%(608/1290) | Feb 26, 2026 |
| 2955 | Brackets | 49%(12488/25434) | Apr 12, 2026 |
| 2960 | S-Nim | 49%(3126/6334) | Apr 3, 2026 |
| 2907 | Collecting Beepers | 53%(1489/2790) | Apr 3, 2026 |
| 2918 | Tudoku | 53%(1659/3091) | Apr 5, 2026 |
| 2953 | Nash Equilibrium | 54%(297/550) | Jan 8, 2026 |
| 2951 | Cake Cutting | 54%(854/1580) | Nov 24, 2025 |
| 2973 | Scrabble | 56%(1105/1964) | Apr 3, 2026 |
| 2959 | Ball bearings | 57%(1774/3112) | Nov 26, 2025 |
| 2909 | Goldbach's Conjecture | 57%(7317/12625) | Jan 7, 2026 |
| 2996 | Help Me with the Game | 59%(3956/6622) | Apr 3, 2026 |
| 2948 | Martian Mining | 62%(1904/3068) | Apr 5, 2026 |
| 2993 | Emag eht htiw Em Pleh | 63%(2987/4732) | Dec 10, 2025 |
| 2904 | The Mailboxes Manufacturers Problem | 69%(849/1214) | Apr 3, 2026 |
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