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

Problems

Title Time Limit (sec)
A Almost Union-Find 1.000
B Broken Keyboard (a.k.a. Beiju Text) 1.000
C Cake Cutting 2.000
D ``Dynamic'' Inversion 3.000
E Easy Problem from Rujia Liu? 1.000
F Fast Matrix Operations 5.000
G Girls' Celebration 10.000
H Happy Painting! 3.000
I I Can Guess the Data Structure! 1.000
J Jewel Magic 5.000
K K Smallest Sums 1.000
L Rujia Liu loves Wario Land! 5.000

Problem descriptions

Submissions

Restricted Standings

Standings

Statistics

Clarifications