top 30 [trees] Luogu2664 game (dotted rule)

1. [UOJ # 388] [UNR # 3] pairing tree (tree line, dsu on tree)
2. [Dynamic] Luogu4719 dp
3. [] BZOJ4140 common point circle enhanced version (binary groups)
4. [LOJ # 3145] [APIO2019] Bridges (partition, disjoint-set)
5. [BZOJ5287] [HNOI2018] cancer (dynamic programming, inclusion and exclusion)
6. [3674] Luo Gu small fresh scum of the willing (Mo team, bitset)
7. BZOJ5301 CQOI2018 [] [] XOR sequence (MO team)
8. BZOJ4540] [] [HNOI2016 sequence (Mo Team)
9. [LOJ # 6072] apple (matrix tree theorem, binary search, inclusion and exclusion)
10. [Violence] CTSC2018 write hung (side partition, the virtual tree)
11. [WC2018] channel (side partition, virtual trees, dynamic programming)
12. 【BZOJ4825】【HNOI2017】单旋（Link-Cut Tree）
13. [Hotel] BZOJ4543 enhanced version (long-chain split)
14. [] APIO2018 new home (segment tree)
15. BZOJ4826 [] [] Movies HNOI2017 magic (scanning lines, monotone stack)
16. [] Contact BZOJ4009 fruit (whole-half scan line)
17. [LOJ # 3146] [APIO2019] lights (set tree tree)
18. [UOJ # 33] [UR # 2] tree the GCD (long chain split, block)
19. [UOJ207] Uncle travel covalently Changsha (Link-Cut Tree, randomized)
20. [BZOJ4237] Scarecrow (CDQ divide and conquer, monotonous stack)
21. BZOJ1492] [] [NOI2007 currency exchange (dynamic programming, CDQ partition, Splay)
22. BZOJ3672] [] [NOI2014 tickets (tree line, the slope of the optimization, dynamic programming)
23. [BZOJ4311] vector (segment tree partition, the slope optimization)
24. [BZOJ3821 / UOJ46] metaphysical (binary packet segment tree)
25. 【】 BZOJ1176 bugs (CDCl 分 治)
26. [BZOJ1095] Hide and Seek (dynamic point divide and conquer)
27. Luo Gu [P4332] [SHOI2014] trigeminal nerve tree (Link-Cut Tree)
28. [BZOJ2648] SJY put the pieces (KD-Tree)
29. 【BZOJ1941】Hide and Seek（KD-Tree）
30. [WC2018] real-time strategy (dynamic point divide and conquer, scapegoat tree)
31. [Trees] Luogu2664 game (dotted rule)
32. [BZOJ4569] pyridazin Mengmeng (disjoint-set, multiplication)
33. Historical research (Mo rollback team)] [BZOJ4241
34. [UR # 14] thinking bear (binary groups)