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 9907 1704 17% 0.02 1558 930 60% 6.6
I Can Guess the Data Structure! 15357 4731 31% 0.00 3208 2823 88% 2.8