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| ID | Title | Ratio(AC/submit) |
Date |
| 3161 | Numerical Integration | 1%(6/560) | Dec 10, 2025 |
| 3143 | False Perceptions | 9%(22/242) | Dec 10, 2025 |
| 3144 | Guarding Zion | 9%(28/293) | Jan 4, 2026 |
| 3142 | Escape Plan | 11%(83/723) | Mar 22, 2026 |
| 3121 | The SetStack Computer | 13%(261/1871) | Dec 10, 2025 |
| 3113 | The Halting Problem | 14%(32/214) | Dec 1, 2025 |
| 3147 | John's Canonical Difference Bound Matrices | 15%(122/796) | Mar 16, 2026 |
| 3108 | Horn Clauses | 17%(77/450) | Mar 18, 2026 |
| 3198 | Polygon Encoder | 17%(125/722) | Dec 10, 2025 |
| 3163 | King of Fighters | 17%(256/1457) | Jan 8, 2026 |
| 3165 | Traveling Trio | 17%(83/464) | Mar 6, 2026 |
| 3153 | Fool's Game | 19%(34/175) | Dec 1, 2025 |
| 3175 | Finding Bovine Roots | 21%(1025/4824) | Apr 3, 2026 |
| 3152 | Exchange | 22%(88/395) | Mar 22, 2026 |
| 3110 | Jenny's First Exam | 22%(262/1160) | Feb 2, 2026 |
| 3101 | Astronomy | 23%(1673/7251) | Mar 22, 2026 |
| 3137 | Enjoyable Commutation | 23%(269/1140) | Apr 5, 2026 |
| 3104 | Drying | 23%(12426/52414) | Apr 12, 2026 |
| 3145 | Harmony Forever | 24%(1501/6239) | Mar 4, 2026 |
| 3111 | K Best | 24%(5156/21291) | Mar 29, 2026 |
| 3102 | Bee Garden | 24%(297/1224) | Mar 16, 2026 |
| 3149 | Billing Tables | 25%(125/500) | Mar 6, 2026 |
| 3162 | Walking Race | 25%(1548/6110) | Apr 9, 2026 |
| 3166 | Jumping Frog | 25%(129/508) | Dec 10, 2025 |
| 3106 | Flip and Turn | 26%(507/1925) | Feb 2, 2026 |
| 3168 | Barn Expansion | 26%(805/3047) | Apr 3, 2026 |
| 3136 | The Best Name for Your Baby | 26%(98/366) | Jan 7, 2026 |
| 3140 | Contestants Division | 26%(3917/14557) | Apr 3, 2026 |
| 3172 | Scales | 27%(985/3613) | Apr 3, 2026 |
| 3157 | Java vs C++ | 27%(2261/8178) | Apr 4, 2026 |
| 3164 | Command Network | 27%(6811/24404) | Mar 21, 2026 |
| 3122 | Pie | 28%(13817/49145) | Apr 14, 2026 |
| 3159 | Candies | 28%(14688/52040) | Apr 3, 2026 |
| 3184 | Finicky Grazers | 28%(527/1857) | Apr 3, 2026 |
| 3114 | Countries in War | 28%(1686/5941) | Apr 5, 2026 |
| 3151 | Driving Directions | 28%(90/317) | Mar 16, 2026 |
| 3116 | MegaCheckers | 28%(51/179) | Apr 3, 2026 |
| 3155 | Hard Life | 28%(3404/11752) | Mar 28, 2026 |
| 3178 | Roping the Field | 29%(384/1319) | Apr 3, 2026 |
| 3109 | Inner Vertices | 29%(1175/3977) | Mar 22, 2026 |
| 3195 | Generalized Matrioshkas | 29%(679/2283) | Jan 7, 2026 |
| 3148 | ASCII Art | 30%(250/831) | Feb 3, 2026 |
| 3160 | Father Christmas flymouse | 31%(1571/5029) | Jan 8, 2026 |
| 3135 | Polygons on the Grid | 31%(242/772) | Mar 4, 2026 |
| 3156 | Interconnect | 31%(483/1540) | Mar 16, 2026 |
| 3141 | Distant Galaxy | 31%(691/2177) | Nov 24, 2025 |
| 3127 | Lineland's Airport | 31%(73/229) | Mar 16, 2026 |
| 3107 | Godfather | 31%(5452/17098) | Apr 14, 2026 |
| 3124 | The Bookcase | 32%(750/2322) | Feb 4, 2026 |
| 3167 | Cow Patterns | 32%(2115/6457) | Apr 3, 2026 |
| 3118 | Critical Route | 32%(105/320) | Apr 3, 2026 |
| 3190 | Stall Reservations | 32%(8863/26871) | Apr 14, 2026 |
| 3131 | Cubic Eight-Puzzle | 33%(688/2076) | Apr 14, 2026 |
| 3193 | Cow Phrasebook | 33%(1142/3403) | Dec 10, 2025 |
| 3188 | Cellphones | 34%(351/1020) | Apr 3, 2026 |
| 3189 | Steady Cow Assignment | 34%(3023/8724) | Mar 21, 2026 |
| 3171 | Cleaning Shifts | 34%(2097/5998) | Apr 3, 2026 |
| 3197 | Continuous Fractions | 36%(411/1129) | Dec 10, 2025 |
| 3181 | Dollar Dayz | 36%(5372/14716) | Mar 21, 2026 |
| 3120 | Sudoku | 38%(160/421) | Dec 10, 2025 |
| 3170 | Knights of Ni | 38%(1169/3027) | Apr 3, 2026 |
| 3185 | The Water Bowls | 38%(3721/9550) | Apr 3, 2026 |
| 3139 | Balancing the Scale | 39%(711/1817) | Dec 10, 2025 |
| 3115 | Energy × Delay | 39%(145/366) | Apr 5, 2026 |
| 3158 | Kickdown | 40%(1046/2589) | Nov 24, 2025 |
| 3150 | Cellular Automaton | 40%(1834/4521) | Nov 20, 2025 |
| 3177 | Redundant Paths | 40%(10181/25026) | Apr 14, 2026 |
| 3179 | Corral the Cows | 40%(1368/3361) | Apr 3, 2026 |
| 3128 | Leonardo's Notebook | 41%(1203/2871) | Nov 20, 2025 |
| 3112 | Digital Biochemist Circuit | 42%(431/1021) | Apr 3, 2026 |
| 3192 | DNA Assembly | 42%(935/2212) | Apr 3, 2026 |
| 3199 | Uncle Jack | 42%(2061/4875) | Mar 20, 2026 |
| 3123 | Ticket to Ride | 42%(443/1047) | Dec 10, 2025 |
| 3119 | Friends or Enemies? | 43%(203/463) | Dec 10, 2025 |
| 3154 | Graveyard | 45%(1090/2394) | Mar 16, 2026 |
| 3182 | The Grove | 46%(572/1220) | Apr 3, 2026 |
| 3174 | Alignment of the Planets | 47%(1043/2202) | Apr 3, 2026 |
| 3169 | Layout | 47%(11047/23112) | Apr 4, 2026 |
| 3105 | Expectation | 47%(593/1236) | Mar 16, 2026 |
| 3138 | ACM Team Selection | 49%(1041/2097) | Apr 5, 2026 |
| 3117 | World Cup | 49%(4967/9986) | Apr 3, 2026 |
| 3146 | Interesting Yang Hui Triangle | 50%(960/1920) | Apr 3, 2026 |
| 3103 | Cutting a Block | 50%(744/1478) | Mar 16, 2026 |
| 3126 | Prime Path | 50%(28245/55987) | Apr 14, 2026 |
| 3125 | Printer Queue | 50%(3724/7364) | Mar 18, 2026 |
| 3183 | Stump Removal | 51%(2047/4009) | Apr 3, 2026 |
| 3191 | The Moronic Cowmpouter | 51%(2436/4759) | Apr 3, 2026 |
| 3186 | Treats for the Cows | 51%(6828/13258) | Apr 3, 2026 |
| 3100 | Root of the Problem | 52%(6849/12971) | Apr 3, 2026 |
| 3130 | How I Mathematician Wonder What You Are! | 53%(2872/5375) | Nov 24, 2025 |
| 3134 | Power Calculus | 54%(2626/4799) | Apr 11, 2026 |
| 3187 | Backward Digit Sums | 55%(7824/14159) | Apr 3, 2026 |
| 3133 | Manhattan Wiring | 55%(1285/2313) | Feb 25, 2026 |
| 3180 | The Cow Prom | 55%(2277/4073) | Apr 3, 2026 |
| 3194 | Equidivisions | 57%(1828/3172) | Nov 26, 2025 |
| 3196 | Babylonian Roulette | 58%(345/590) | Jan 9, 2026 |
| 3132 | Sum of Different Primes | 60%(2374/3918) | Apr 3, 2026 |
| 3173 | Parkside's Triangle | 61%(4985/8140) | Apr 3, 2026 |
| 3176 | Cow Bowling | 65%(19312/29708) | Apr 9, 2026 |
| 3129 | How I Wonder What You Are! | 68%(835/1211) | Apr 5, 2026 |
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