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 6823 1209 18% 0.02 1106 635 57% 7.1
I Can Guess the Data Structure! 11398 3537 31% 0.00 2467 2183 88% 2.4