| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 56 | nOIP2020Aid56 排水系统 | 0 / 0 | (None) | |
| 62 | nOIP2020Bid62 字符串匹配 | 0 / 0 | (None) | |
| 63 | nOIP2020Cid63 移球游戏 | 0 / 0 | (None) | |
| 64 | nOIP2020Did64 微信步数 | 0 / 0 | (None) | |
| 61 | nOIP2021Aid61 报数 | 0 / 0 | (None) | |
| 57 | nOIP2021Bid57 数列 | 0 / 3 | 10 | |
| 58 | nOIP2021Cid58 方差 | 0 / 0 | (None) | |
| 70 | nOIP2021Did70 棋局 | 0 / 0 | (None) | |
| 53 | nOIP2022Aid53 种花(plant) | 0 / 0 | (None) | |
| 65 | nOIP2022Bid65 喵了个喵(meow) | 0 / 0 | (None) | |
| 67 | nOIP2022Cid67 建造军营(barrack) | 0 / 0 | (None) | |
| 68 | nOIP2022Did68 比赛(match) | 0 / 0 | (None) | |
| 55 | nOIP2023Aid55 词典(dict) | 0 / 0 | (None) | |
| 66 | nOIP2023Bid66 三值逻辑(tribool) | 0 / 0 | (None) | |
| 69 | nOIP2023Cid69 双序列拓展(expand) | 0 / 0 | (None) |
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