| 4417 | P8185 [USACO22FEB] Blocks B | 4 | 5 | 80.000% |
| 4418 | P6065 [USACO05JAN] Sumsets S | 3 | 3 | 100.000% |
| 4419 | P2978 [USACO10JAN] Tea Time S | 7 | 8 | 87.500% |
| 4420 | P8184 [USACO22FEB] Photoshoot 2 B | 3 | 4 | 75.000% |
| 4421 | P3669 [USACO17OPEN] Paired Up S | 7 | 8 | 87.500% |
| 4422 | P3405 [USACO16DEC] Cities and States S | 3 | 3 | 100.000% |
| 4423 | P2873 [USACO07DEC] Mud Puddles S | 13 | 18 | 72.222% |
| 4424 | 最大整数（NOIP99) | 3 | 3 | 100.000% |
| 4425 | 区间相交问题 | 17 | 66 | 25.758% |
| 4426 | P8897 [USACO22DEC] Cow College B | 5 | 5 | 100.000% |
| 4427 | P7993 [USACO21DEC] Lonely Photo B | 3 | 4 | 75.000% |
| 4428 | P8267 [USACO22OPEN] Counting Liars B | 18 | 28 | 64.286% |
| 4429 | 奖学金(reward) | 12 | 25 | 48.000% |
| 4430 | 最短路 | 4 | 4 | 100.000% |
| 4431 | 聚会 | 2 | 2 | 100.000% |
| 4432 | 中级第三课——A类B类二进制数 | 3 | 4 | 75.000% |
| 4433 | 加分二叉树-NOIP2003TGT3 | 3 | 3 | 100.000% |
| 4434 | 发射站 | 20 | 35 | 57.143% |
| 4435 | 单词查找树 | 5 | 5 | 100.000% |
| 4436 | 二叉苹果树--树型动态规划训练T1 | 1 | 1 | 100.000% |
| 4437 | Huffuman树 | 4 | 5 | 80.000% |
| 4438 | 最小差值生成树 | 1 | 3 | 33.333% |
| 4439 | 【二叉树】查找二叉树 | 6 | 6 | 100.000% |
| 4440 | P3397 地毯 | 28 | 55 | 50.909% |
| 4441 | 语文成绩 | 13 | 19 | 68.421% |
| 4443 | 最大正方形 | 11 | 14 | 78.571% |
| 4444 | 巨大的牛棚 | 23 | 27 | 85.185% |
| 4445 | 【字符串】最长回文子串 | 7 | 17 | 41.176% |
| 4446 | 火烧赤壁 | 20 | 37 | 54.054% |
| 4447 | P4122 [USACO17DEC] Blocked Billboard B | 0 | 48 | 0.000% |
| 4448 | 程序自动分析 | 21 | 35 | 60.000% |
| 4449 | 红牌 | 28 | 38 | 73.684% |
| 4450 | B3635硬币 | 17 | 25 | 68.000% |
| 4451 | 文字工作 | 10 | 16 | 62.500% |
| 4453 | P2913 [USACO08OCT] Wheel Rotation G | 20 | 27 | 74.074% |
| 4454 | P6200 [USACO07OCT] Super Paintball G | 26 | 34 | 76.471% |
| 4455 | P5117 [USACO18DEC] The Bucket List B | 16 | 18 | 88.889% |
| 4456 | 战略游戏 | 16 | 22 | 72.727% |
| 4457 | 战略游戏--树型动态规划训练T4 | 15 | 16 | 93.750% |
| 4458 | 【搜索基础】N皇后问题 | 13 | 24 | 54.167% |
| 4459 | 积木城堡 | 6 | 6 | 100.000% |
| 4460 | 安全逃离 | 2 | 6 | 33.333% |
| 4461 | 宝箱 | 2 | 3 | 66.667% |
| 4462 | 方格 | 3 | 5 | 60.000% |
| 4463 | 涂色 | 0 | 3 | 0.000% |
| 4464 | 素数圆环 | 4 | 5 | 80.000% |
| 4465 | NOIP2008普及组第2题 排座椅 | 2 | 2 | 100.000% |
| 4466 | 2.1.1 The Castle城堡 | 1 | 1 | 100.000% |
| 4467 | 2.1.4 Healthy Holsteins健康的荷斯坦奶牛 | 6 | 9 | 66.667% |
| 4468 | 1.5.3 Superprime Rib 特殊的质数肋骨 | 30 | 67 | 44.776% |