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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%(32/570) | May 7, 2026 |
| 2981 | Deal of Fortune | 6%(25/371) | May 7, 2026 |
| 2915 | Zuma | 7%(202/2642) | May 27, 2026 |
| 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%(1206/8024) | Aug 8, 2026 |
| 2982 | Time Travel | 15%(634/4145) | Aug 15, 2026 |
| 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%(2080/9312) | Aug 8, 2026 |
| 2919 | Traveling Queen Problem | 22%(127/559) | Dec 9, 2025 |
| 2932 | Coneology | 22%(1372/5997) | Sep 2, 2026 |
| 2984 | A New Joseph Problem | 23%(923/3968) | Aug 9, 2026 |
| 2986 | A Triangle and a Circle | 23%(1007/4306) | Aug 31, 2026 |
| 2910 | Downpayment | 23%(44/187) | Aug 8, 2026 |
| 2970 | The lazy programmer | 23%(1026/4292) | Aug 13, 2026 |
| 2933 | Explaining the Stock Market | 24%(180/742) | Mar 21, 2026 |
| 2969 | Divisibility by 15 | 24%(903/3697) | Aug 8, 2026 |
| 2995 | Go Endgame | 25%(111/442) | Apr 5, 2026 |
| 2921 | Knights of the Round Table | 25%(386/1537) | Sep 5, 2026 |
| 2928 | A City of Skyscrapers | 25%(432/1712) | Aug 26, 2026 |
| 2997 | IVXLCDM | 25%(224/877) | Sep 6, 2026 |
| 2980 | Do it! | 25%(381/1487) | Aug 15, 2026 |
| 2991 | Crane | 25%(3318/12870) | Sep 3, 2026 |
| 2988 | Function Approximation | 26%(130/495) | Mar 16, 2026 |
| 2990 | Board Game | 27%(88/325) | Mar 6, 2026 |
| 2946 | The Warehouse | 27%(461/1691) | Aug 29, 2026 |
| 2977 | Box walking | 27%(676/2457) | Aug 9, 2026 |
| 2962 | Who owns the Amiga? | 27%(41/149) | Mar 6, 2026 |
| 2944 | Wild West | 28%(377/1305) | Sep 5, 2026 |
| 2934 | Automatic Correction of Misspellings | 29%(765/2615) | Aug 9, 2026 |
| 2992 | Divisors | 29%(4266/14499) | Aug 6, 2026 |
| 2989 | All Friends | 29%(1220/4121) | Sep 5, 2026 |
| 2922 | Honeymoon Hike | 29%(1087/3668) | Aug 8, 2026 |
| 2931 | Procrastination | 29%(232/781) | May 17, 2026 |
| 2908 | Quantum | 29%(1085/3640) | Aug 9, 2026 |
| 2903 | Joy of Mobile Routing | 29%(79/265) | Mar 6, 2026 |
| 2983 | Is the Information Reliable? | 30%(5565/18247) | Aug 5, 2026 |
| 2987 | Firing | 30%(4155/13557) | Aug 13, 2026 |
| 2937 | Dihedral Groups | 31%(469/1506) | Mar 16, 2026 |
| 2976 | Dropping tests | 32%(11554/35916) | Sep 3, 2026 |
| 2942 | Knights of the Round Table | 32%(5948/18481) | Sep 6, 2026 |
| 2985 | The k-th Largest Group | 32%(3606/11134) | Aug 6, 2026 |
| 2901 | Hotel | 32%(363/1109) | Sep 5, 2026 |
| 2912 | Rochambeau | 32%(3337/10147) | Sep 5, 2026 |
| 2947 | Widget Factory | 33%(3218/9630) | Sep 4, 2026 |
| 2902 | Intercepting Missiles | 33%(89/263) | May 5, 2026 |
| 2943 | The Cow Doctor | 34%(583/1708) | Apr 3, 2026 |
| 2938 | Economic Phone Calls | 34%(292/853) | Sep 5, 2026 |
| 2926 | Requirements | 34%(1689/4872) | Aug 7, 2026 |
| 2917 | Diophantus of Alexandria | 35%(1562/4429) | Aug 7, 2026 |
| 2945 | Find the Clones | 35%(3510/9812) | Jul 28, 2026 |
| 2998 | Hardware | 36%(379/1041) | Aug 15, 2026 |
| 2906 | Moving Pianos | 36%(393/1079) | Aug 29, 2026 |
| 2925 | Kick-Tipp | 37%(194/524) | Jul 18, 2026 |
| 2939 | Flavius Josephus Reloaded | 37%(828/2225) | Aug 13, 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%(15207/39829) | Sep 4, 2026 |
| 2923 | Relocation | 40%(1988/4937) | Aug 8, 2026 |
| 2956 | Repeatless Numbers | 40%(879/2161) | Aug 8, 2026 |
| 2994 | Failing Roads | 40%(215/526) | Apr 3, 2026 |
| 2964 | Tourist | 41%(702/1702) | Aug 13, 2026 |
| 2954 | Triangle | 41%(3033/7225) | Aug 6, 2026 |
| 2974 | Convex area | 41%(257/612) | Sep 5, 2026 |
| 2958 | Pizza delivery | 42%(601/1414) | Aug 9, 2026 |
| 2914 | Minimum Cut | 42%(5585/13125) | Aug 5, 2026 |
| 2957 | Planet Hunting | 42%(255/596) | Sep 5, 2026 |
| 2940 | Wine Trading in Gergovia | 43%(2009/4657) | Aug 7, 2026 |
| 2979 | RSI | 44%(195/441) | Dec 10, 2025 |
| 2952 | Election | 44%(468/1050) | Aug 13, 2026 |
| 2924 | Gauß in Elementary School | 44%(4518/10134) | Nov 26, 2025 |
| 2935 | Basic Wall Maze | 44%(1580/3543) | Aug 7, 2026 |
| 2941 | Homogeneous Squares | 46%(3252/7028) | Aug 6, 2026 |
| 2975 | Nim | 46%(4223/9039) | Aug 7, 2026 |
| 2920 | Mine Map | 46%(521/1109) | Aug 13, 2026 |
| 2978 | Colored stones | 47%(958/2033) | Aug 8, 2026 |
| 2961 | Sylvester construction | 47%(609/1291) | Aug 9, 2026 |
| 2955 | Brackets | 49%(12577/25612) | Sep 5, 2026 |
| 2960 | S-Nim | 49%(3137/6349) | Aug 7, 2026 |
| 2907 | Collecting Beepers | 53%(1501/2802) | Aug 24, 2026 |
| 2918 | Tudoku | 53%(1661/3093) | Aug 7, 2026 |
| 2951 | Cake Cutting | 54%(855/1581) | Aug 9, 2026 |
| 2953 | Nash Equilibrium | 54%(298/551) | Aug 29, 2026 |
| 2973 | Scrabble | 56%(1108/1967) | Aug 25, 2026 |
| 2959 | Ball bearings | 57%(1776/3114) | Jul 24, 2026 |
| 2909 | Goldbach's Conjecture | 57%(7323/12631) | Aug 24, 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%(2988/4733) | Jun 1, 2026 |
| 2904 | The Mailboxes Manufacturers Problem | 69%(850/1215) | Aug 8, 2026 |
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