Participant: Xiefeng

Representing China using C++.

Qualification Round: ranked 2380 (50 points)
Saving the UniverseTrain TimetableFly Swatter
SLSLSL
Download C++ Download C++ Download C++ Download C++
Round 1C: ranked 19 (90 points)
Text Messaging OutrageUgly NumbersIncreasing Speed Limits
SLSLSL
Download C++ Download C++ Download C++ Download C++ Download C++
Round 2: ranked 1167 (20 points)
Cheating a Boolean TreeTriangle AreasStar WarsPermRLE
SLSLSLSL
Download C++ Download C++ Download C++