| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 2776 | A1564B [ABC183C] 旅行(Travel) | 7 / 12 | 5 | |
| 2772 | A1779 【例】小高的旅行 | 9 / 14 | 3 | |
| 2764 | A1779A 星形树判定 | 3 / 6 | 1 | |
| 2777 | A1976A 碰撞 | 3 / 7 | 6 | |
| 2765 | A1977 【例】武术家 | 2 / 13 | 3 | |
| 2762 | A1978 【例】擦除叶子 | 8 / 19 | 3 | |
| 2763 | A2149A 旅行 | 3 / 4 | 5 | |
| 2775 | ABC175C [ABC175C] 行走的小高(Walking Takahashi) | 1 / 1 | 5 | |
| 2767 | ABC232C [ABC232C] 图同构(Graph Isomorphism) | 2 / 2 | 5 | |
| 2761 | ABC243D [ABC243D] 二叉树上的移动(Moves on Binary Tree) | 3 / 14 | 9 | |
| 2766 | ABC262B [ABC262B] 三角形(Triangle (Easier)) | 2 / 4 | 1 | |
| 2768 | ABC270C [ABC270C] 简单路径(Simple path) | 2 / 2 | 5 | |
| 2771 | ABC272B [ABC272B] 每个人都是朋友(Everyone is Friends) | 2 / 2 | 1 | |
| 2760 | ABC274C [ABC274C] 变形虫 | 1 / 2 | 10 | |
| 2769 | ABC317C [ABC317C] 回忆那些日子(Remembering the Days) | 2 / 3 | 3 | |
| 2770 | ABC343B [ABC343B] 邻接矩阵(Adjacency Matrix) | 1 / 1 | 1 | |
| 2778 | ABC350D [ABC350D] 新朋友(New Friends) | 1 / 2 | 10 | |
| 2773 | NOIP1025 [NOIP 2018 普及组] 对称二叉树 | 1 / 1 | 10 | |
| 2774 | NOIP1026 [NOIP 2004 普及组] FBI 树 | 2 / 2 | 10 |