| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 116 | P116 「一本通 4.1 例 2」数星星 Stars | 5 / 29 | 8 | |
| 117 | P117 「一本通 4.1 例 3」校门外的树 | 2 / 9 | 10 | |
| 118 | P118 「一本通 4.1 练习 1」清点人数 | 0 / 0 | (None) | |
| 119 | P119 「一本通 4.1 练习 2」简单题 | 0 / 0 | (None) | |
| 365 | P1168 中位数 | 11 / 48 | 7 | |
| 292 | P1471 方差 | 3 / 17 | 9 | |
| 276 | P1908 逆序对 | 13 / 49 | 7 | |
| 280 | P2068 统计和 | 8 / 20 | 7 | |
| 282 | P2357 守墓人 | 4 / 28 | 9 | |
| 267 | P2880 [USACO07JAN] Balanced Lineup G | 16 / 18 | 5 | |
| 275 | P3368 【模板】树状数组 2 | 15 / 41 | 6 | |
| 274 | P3374 【模板】树状数组 1 | 16 / 83 | 7 | |
| 281 | P5057 [CQOI2006] 简单题 | 5 / 5 | 10 | |
| 279 | P5677 [GZOI2017] 配对统计 | 0 / 0 | (None) | |
| 285 | P10497 [USACO03Open] Lost Cows | 1 / 2 | 10 | 
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