| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 251 | D1443 泉水 | 1 / 1 | 4 | |
| 252 | D1751 快乐的马里奥 | 1 / 1 | 4 | |
| 256 | K2902 瓷砖 | 5 / 6 | 4 | |
| 257 | K2903 最大黑区域 | 0 / 0 | 4 | |
| 258 | K2905 关系网络 | 0 / 0 | 4 | |
| 259 | K2906 猴群 | 0 / 0 | 4 | |
| 268 | L1332 血色先锋队 | 1 / 1 | 4 | |
| 267 | L1746 离开中山路 | 0 / 0 | 4 | |
| 253 | L3395 路障 | 0 / 0 | 4 | |
| 281 | L10491 [USACO09NOV] The Chivalrous Cow B | 1 / 1 | 4 | |
| 244 | P1249 Lake Counting | 0 / 0 | 4 | |
| 245 | P1250 The Castle | 0 / 0 | 4 | |
| 246 | P1251 仙岛求药 | 0 / 0 | 4 | |
| 247 | P1252 走迷宫 | 0 / 0 | 4 | |
| 248 | P1253 抓住那头牛 | 0 / 0 | 4 | |
| 249 | P1254 走出迷宫 | 0 / 0 | 4 | |
| 250 | P1255 迷宫问题 | 0 / 0 | 4 | |
| 254 | P1256 献给阿尔吉侬的花束 | 0 / 0 | 4 | |
| 255 | P1257 Knight Moves | 0 / 0 | 4 | |
| 242 | P1329 【例8.2】细胞 | 1 / 1 | 4 | |
| 243 | P1330 【例8.3】最少步数 | 0 / 0 | 4 | |
| 280 | P1443 马的遍历 | 0 / 0 | 4 |