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 5444 961 18% 0.02 863 495 57% 6.7
I Can Guess the Data Structure! 7904 2404 30% 0.00 1769 1562 88% 2.4