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

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Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Almost Union-Find	0.02	367	4552	3284	72%	4.1Medium	en
I Can Guess the Data Structure!	0.00	305	5797	4985	86%	2.1Easy	en