| Problem ID | Title | Solved | Submit | Pass Rate |
|---|---|---|---|---|
| 4071 | Sum of Medians | 1 | 1 | 100.0% |
| 4091 | Game of the Rows | 19 | 28 | 67.9% |
| 4127 | 四边形 | 74 | 155 | 47.7% |
| 4904 | 机器人序列 | 91 | 166 | 54.8% |
| 4960 | New Year and Cleaning | 1 | 2 | 50.0% |
| 4964 | New Year and Old Property | 2 | 2 | 100.0% |
| 4969 | Vika and Squares | 2 | 3 | 66.7% |
| 4987 | 测试机器人 | 2 | 3 | 66.7% |
| 4988 | 魔术师 | 107 | 282 | 37.9% |
| 4991 | CF 评分 | 40 | 60 | 66.7% |
| 4998 | 两个进制 | 136 | 253 | 53.8% |
| 5007 | Chat Server's Outgoing Traffic | 3 | 6 | 50.0% |
| 5009 | Team Arrangement小组式排班 | 2 | 2 | 100.0% |
| 5016 | 海绵宝宝和恶作剧 | 7 | 11 | 63.6% |
| 5377 | Registration system | 3 | 3 | 100.0% |
| 5396 | Secret Combination | 2 | 2 | 100.0% |
| 5416 | Restoring Increasing Sequence | 1 | 1 | 100.0% |