Welcome - acm.bjtu

Start at 2017-07-24 10:00:00 End at 2017-07-26 21:00:00

Started 7 years Ended 7 years

Infinity

#	Origin	Name
A	UVA 11462	Age Sort
B	UVA 11078	Open Credit System
C	UVA 11549	Calculator Conundrum
D	UVA 11550	Demanding Dilemma
E	UVA 11995	I Can Guess the Data Structure!
F	UVA 11991	Easy Problem from Rujia Liu?
G	UVA 11997	K Smallest Sums
H	UVA 11988	Broken Keyboard (a.k.a. Beiju Text)
I	UVA 11987	Almost Union-Find
J	CodeForces 500B	New Year Permutation

第四题放错啦，可以不做。
你们不要都抄书呀！
并查集请在这里学习 http://blog.csdn.net/dm_vincent/article/details/7655764 ，其余部分见课件。