| 2619 | 【USACO2009DEC】过路费 | 3 | 2 | 150.000% |
| 2620 | 【USACO2009DEC】电视游戏 | 4 | 2 | 200.000% |
| 2621 | 【USACO2009DEC】高山滑雪 | 4 | 3 | 133.333% |
| 2622 | 【USACO2009DEC】乐谱 | 5 | 11 | 45.455% |
| 2623 | 【USACO2013JAN】奶牛排队{ Gold题1} | 3 | 3 | 100.000% |
| 2624 | 【USACO2014JAN】滑雪场评级{ Gold题3} | 1 | 0 | 0.000% |
| 2625 | 【USACO2014FebGold】Roadblock | 2 | 1 | 200.000% |
| 2626 | 【USACO2014JAN】滑雪场设计{Bronze题1} | 3 | 2 | 150.000% |
| 2627 | 【USACO2014JAN】滑雪降速{silver题1} | 2 | 0 | 0.000% |
| 2628 | 【USACO2014JAN】滑雪录像{silver题3} | 70 | 184 | 38.043% |
| 2629 | 【USACO2014JAN】滑雪场建设{ Gold题2} | 1 | 0 | 0.000% |
| 2630 | 五人分鱼 | 7 | 8 | 87.500% |
| 2631 | 手机输入法 | 1 | 2 | 50.000% |
| 2632 | 算法4-7：KMP算法中的模式串移动数组 | 4 | 0 | 0.000% |
| 2633 | 算法4-6：KMP字符串模式匹配算法实现 | 4 | 0 | 0.000% |
| 2634 | USACO2020Open P1 - Social Distancing 01 | 2 | 3 | 66.667% |
| 2635 | 求逆序对个数 | 44 | 64 | 68.750% |
| 2636 | 0101 a^b | 138 | 346 | 39.884% |
| 2637 | 0102 64位整数乘法 | 91 | 188 | 48.404% |
| 2638 | 0103 最短Hamilton路径 | 2 | 14 | 14.286% |
| 2639 | 0104 起床困难综合症 | 3 | 5 | 60.000% |
| 2640 | 0301 递归实现指数型枚举 | 0 | 4 | 0.000% |
| 2641 | 0302 递归／非递归实现组合型枚举 | 0 | 5 | 0.000% |
| 2642 | 0201 费解的开关 | 1 | 3 | 33.333% |
| 2643 | 激光炸弹 | 3 | 5 | 60.000% |
| 2644 | 0304 IncDec Sequence | 3 | 5 | 60.000% |
| 2645 | 分解质因数（Primefac） [1*] | 23 | 29 | 79.310% |
| 2646 | X的Y次方 | 9 | 27 | 33.333% |
| 2647 | Fractal Streets | 0 | 0 | 0.000% |
| 2648 | Sumdiv | 1 | 2 | 50.000% |
| 2649 | Tallest Cow | 1 | 1 | 100.000% |
| 2650 | Best Cow Fences | 2 | 3 | 66.667% |
| 2651 | 113. 特殊排序 | 0 | 0 | 0.000% |
| 2652 | 0501 货仓选址 | 23 | 46 | 50.000% |
| 2653 | C. Cinema | 0 | 1 | 0.000% |
| 2654 | 0502 七夕祭 | 0 | 0 | 0.000% |
| 2655 | Running Median | 9 | 21 | 42.857% |
| 2656 | Ultra-QuickSort | 1 | 2 | 50.000% |
| 2657 | 0503 奇数码问题 | 0 | 0 | 0.000% |
| 2658 | 0601 Genius ACM | 1 | 2 | 50.000% |
| 2659 | To the Max | 0 | 0 | 0.000% |
| 2660 | Sunscreen | 0 | 0 | 0.000% |
| 2661 | Stall Reservations | 0 | 0 | 0.000% |
| 2662 | 0701 国王游戏 | 0 | 3 | 0.000% |
| 2663 | Color a Tree | 0 | 1 | 0.000% |
| 2664 | The Pilots Brothers' refrigerator | 0 | 2 | 0.000% |
| 2665 | 0802 占卜DIY | 4 | 5 | 80.000% |
| 2666 | Fractal | 0 | 0 | 0.000% |
| 2667 | Raid | 0 | 0 | 0.000% |
| 2668 | 0805 防线 | 0 | 0 | 0.000% |