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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%(31/562) | May 12, 2022 |
| 2981 | Deal of Fortune | 5%(21/364) | Sep 6, 2025 |
| 2915 | Zuma | 7%(202/2639) | Nov 17, 2025 |
| 2936 | Construct the Wall Maze | 8%(58/680) | Nov 30, 2022 |
| 2927 | Constructing Roads | 10%(73/682) | Oct 20, 2025 |
| 2930 | Dialing Dice | 11%(55/466) | Oct 21, 2025 |
| 2999 | Matrix | 12%(25/194) | Oct 21, 2025 |
| 2968 | Necklace | 13%(91/700) | Oct 19, 2025 |
| 2913 | Fly Monkey | 13%(145/1072) | Nov 24, 2025 |
| 2963 | Lazy Evaluation | 14%(17/118) | Oct 18, 2025 |
| 2967 | Triangles | 15%(1205/8021) | Nov 24, 2025 |
| 2982 | Time Travel | 15%(631/4139) | Nov 24, 2025 |
| 2929 | The Traveling Salesman | 15%(37/237) | Oct 18, 2025 |
| 2966 | A safe way | 19%(381/1974) | Oct 20, 2025 |
| 2971 | "Switchback" | 19%(61/310) | Oct 19, 2025 |
| 2916 | The Wolves and the Sheep Plus | 20%(45/225) | Oct 18, 2025 |
| 2905 | Parallel Computer Simulator | 20%(58/284) | Oct 18, 2025 |
| 2972 | Laser-Ball | 22%(50/225) | Oct 18, 2025 |
| 2949 | Word Rings | 22%(2065/9179) | Nov 24, 2025 |
| 2919 | Traveling Queen Problem | 22%(127/557) | Oct 20, 2025 |
| 2932 | Coneology | 22%(1369/5989) | Nov 24, 2025 |
| 2986 | A Triangle and a Circle | 23%(983/4226) | Nov 17, 2025 |
| 2984 | A New Joseph Problem | 23%(922/3955) | Oct 18, 2025 |
| 2910 | Downpayment | 23%(43/180) | Oct 18, 2025 |
| 2970 | The lazy programmer | 23%(1024/4286) | Nov 24, 2025 |
| 2933 | Explaining the Stock Market | 24%(179/738) | Oct 19, 2025 |
| 2969 | Divisibility by 15 | 24%(898/3684) | Nov 18, 2025 |
| 2921 | Knights of the Round Table | 24%(377/1521) | Nov 24, 2025 |
| 2980 | Do it! | 25%(371/1475) | Nov 24, 2025 |
| 2928 | A City of Skyscrapers | 25%(431/1711) | Nov 24, 2025 |
| 2995 | Go Endgame | 25%(111/434) | Nov 17, 2025 |
| 2997 | IVXLCDM | 25%(222/867) | Oct 19, 2025 |
| 2991 | Crane | 25%(3304/12835) | Sep 24, 2025 |
| 2988 | Function Approximation | 26%(129/491) | Oct 20, 2025 |
| 2946 | The Warehouse | 27%(457/1685) | Nov 17, 2025 |
| 2990 | Board Game | 27%(87/319) | Feb 6, 2025 |
| 2977 | Box walking | 27%(675/2452) | Nov 24, 2025 |
| 2962 | Who owns the Amiga? | 28%(41/143) | Oct 21, 2025 |
| 2944 | Wild West | 28%(374/1293) | Oct 17, 2025 |
| 2934 | Automatic Correction of Misspellings | 29%(759/2609) | Nov 24, 2025 |
| 2992 | Divisors | 29%(4250/14455) | Nov 24, 2025 |
| 2989 | All Friends | 29%(1210/4098) | Nov 24, 2025 |
| 2922 | Honeymoon Hike | 29%(1079/3653) | Nov 20, 2025 |
| 2931 | Procrastination | 29%(230/776) | Oct 21, 2025 |
| 2908 | Quantum | 29%(1081/3627) | Nov 20, 2025 |
| 2903 | Joy of Mobile Routing | 30%(79/261) | Nov 12, 2025 |
| 2983 | Is the Information Reliable? | 30%(5550/18225) | Nov 20, 2025 |
| 2987 | Firing | 30%(4142/13520) | Oct 21, 2025 |
| 2937 | Dihedral Groups | 31%(468/1502) | Nov 24, 2025 |
| 2976 | Dropping tests | 31%(11311/35468) | Nov 21, 2025 |
| 2942 | Knights of the Round Table | 32%(5906/18368) | Nov 25, 2025 |
| 2985 | The k-th Largest Group | 32%(3581/11072) | Nov 24, 2025 |
| 2901 | Hotel | 32%(360/1096) | Oct 23, 2025 |
| 2912 | Rochambeau | 32%(3329/10116) | Nov 15, 2025 |
| 2947 | Widget Factory | 33%(3181/9502) | Nov 24, 2025 |
| 2902 | Intercepting Missiles | 33%(88/261) | Oct 18, 2025 |
| 2943 | The Cow Doctor | 34%(579/1696) | Nov 20, 2025 |
| 2938 | Economic Phone Calls | 34%(290/844) | Oct 23, 2025 |
| 2926 | Requirements | 34%(1685/4866) | Nov 20, 2025 |
| 2917 | Diophantus of Alexandria | 35%(1561/4428) | Nov 24, 2025 |
| 2945 | Find the Clones | 35%(3503/9799) | Nov 20, 2025 |
| 2998 | Hardware | 36%(374/1030) | Nov 24, 2025 |
| 2906 | Moving Pianos | 36%(392/1071) | Nov 24, 2025 |
| 2925 | Kick-Tipp | 36%(190/516) | Nov 24, 2025 |
| 2939 | Flavius Josephus Reloaded | 37%(822/2212) | Nov 24, 2025 |
| 2900 | Griddy Hobby | 37%(226/602) | Nov 12, 2025 |
| 2911 | Simplified λ-evaluations | 38%(53/139) | Nov 24, 2025 |
| 2965 | The Pilots Brothers' refrigerator | 38%(15000/39271) | Nov 24, 2025 |
| 2923 | Relocation | 40%(1974/4915) | Nov 24, 2025 |
| 2956 | Repeatless Numbers | 40%(873/2149) | Nov 24, 2025 |
| 2994 | Failing Roads | 40%(211/515) | Nov 24, 2025 |
| 2964 | Tourist | 41%(696/1688) | Nov 24, 2025 |
| 2974 | Convex area | 41%(248/599) | Nov 24, 2025 |
| 2954 | Triangle | 41%(3020/7211) | Nov 20, 2025 |
| 2958 | Pizza delivery | 42%(590/1401) | Nov 24, 2025 |
| 2914 | Minimum Cut | 42%(5475/12944) | Nov 20, 2025 |
| 2957 | Planet Hunting | 42%(254/595) | Nov 24, 2025 |
| 2940 | Wine Trading in Gergovia | 43%(1999/4641) | Nov 20, 2025 |
| 2979 | RSI | 44%(195/440) | Oct 18, 2025 |
| 2952 | Election | 44%(459/1034) | Nov 20, 2025 |
| 2935 | Basic Wall Maze | 44%(1578/3540) | Nov 24, 2025 |
| 2924 | Gauß in Elementary School | 44%(4517/10133) | Nov 20, 2025 |
| 2941 | Homogeneous Squares | 46%(3249/7025) | Nov 20, 2025 |
| 2975 | Nim | 46%(4216/9032) | Nov 20, 2025 |
| 2920 | Mine Map | 46%(515/1096) | Nov 24, 2025 |
| 2978 | Colored stones | 47%(949/2018) | Nov 24, 2025 |
| 2961 | Sylvester construction | 47%(608/1284) | Nov 24, 2025 |
| 2955 | Brackets | 49%(12437/25307) | Nov 23, 2025 |
| 2960 | S-Nim | 49%(3119/6321) | Nov 24, 2025 |
| 2907 | Collecting Beepers | 53%(1484/2785) | Nov 20, 2025 |
| 2918 | Tudoku | 53%(1656/3088) | Nov 24, 2025 |
| 2953 | Nash Equilibrium | 53%(295/547) | Nov 20, 2025 |
| 2951 | Cake Cutting | 54%(854/1580) | Nov 24, 2025 |
| 2973 | Scrabble | 56%(1099/1951) | Nov 24, 2025 |
| 2959 | Ball bearings | 56%(1773/3111) | Nov 24, 2025 |
| 2909 | Goldbach's Conjecture | 57%(7271/12553) | Nov 20, 2025 |
| 2996 | Help Me with the Game | 59%(3951/6610) | Nov 20, 2025 |
| 2948 | Martian Mining | 62%(1902/3065) | Nov 24, 2025 |
| 2993 | Emag eht htiw Em Pleh | 63%(2986/4730) | Nov 24, 2025 |
| 2904 | The Mailboxes Manufacturers Problem | 69%(839/1200) | Nov 18, 2025 |
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