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

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Almost Union-Find 4948 868 18% 0.02 774 430 56% 7.0
I Can Guess the Data Structure! 6890 2108 31% 0.00 1553 1370 88% 2.2