| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 250 | Y323 【例55.1】 整数奇偶排序 | 100 / 499 | 7 | |
| 251 | Y324 【例55.2】 约翰书架 | 52 / 245 | 7 | |
| 252 | Y325 【例55.3】 绝对值排序 | 72 / 320 | 7 | |
| 253 | Y326 练55.1 合影效果 | 32 / 110 | 6 | |
| 254 | Y327 练55.2 跳绳比赛 | 52 / 177 | 6 | |
| 255 | Y328 练55.3 收益最大 | 16 / 119 | 8 | |
| 256 | Y329 练55.4 沙堡 | 15 / 58 | 7 |
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