Gnarly Cow We are continually faced with a series of great opportunities brilliantly disguised as insoluble problems.

TopCoder

SRM435 (完成度2/3，第三题待实现)

SRM433 (完成度2/3，第三题待实现)

SRM432 (完成度1/3，第二题待思考，第三题待实现)

SRM431 (完成度2/3，第三题待思考)

SRM429 (完成度3/3，DONE!)

USACO Contest

FEB09 Gold (完成度3/3，DONE!)

JAN09 Gold (完成度3/3，DONE!)