| Problem ID | Title | Solved | Submit | Pass Rate |
|---|---|---|---|---|
| 4040 | Friends | 0 | 0 | 0.0% |
| 4048 | 排队 | 13 | 51 | 25.5% |
| 4124 | 办公室钥匙 | 17 | 43 | 39.5% |
| 4838 | Bear and Contribution | 1 | 1 | 100.0% |
| 4901 | Jerry's Protest | 5 | 5 | 100.0% |
| 4911 | Electric Charges | 1 | 1 | 100.0% |
| 4945 | Hexagons | 1 | 1 | 100.0% |
| 4960 | New Year and Cleaning | 1 | 2 | 50.0% |
| 4986 | 烽火台 | 120 | 332 | 36.1% |
| 4990 | 牛铃 | 44 | 94 | 46.8% |
| 5590 | DZY Loves Planting | 1 | 1 | 100.0% |
| 5591 | DZY Loves Strings | 1 | 1 | 100.0% |
| 5612 | his brother | 14 | 20 | 70.0% |
| 5628 | Furukawa Nagisa's Tree | 1 | 1 | 100.0% |
| 5640 | Random Task | 1 | 1 | 100.0% |
| 5659 | Sereja and Squares | 1 | 1 | 100.0% |
| 5663 | Biathlon Track | 1 | 1 | 100.0% |
| 5666 | 代码的bug | 8 | 11 | 72.7% |
| 5912 | 成对的数字 | 5 | 5 | 100.0% |