Problems from Rujia Liu's Present 3: A datastructure contest celebrating the 100th anniversary of Tsinghua University

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Almost Union-Find	0.02	648	33049	4324	13%	4.1Medium	en
I Can Guess the Data Structure!	0.00	305	22951	6562	29%	3.0Medium	en