ZSTUOJ

题目编号	标题	来源/分类	解决	提交
1771	Billiard	Waterloo local 1999.06.19	0	0
1772	The Brick Stops Here	Waterloo local 1999.06.19	0	0
1773	Election	Waterloo local 1999.06.19	1	1
1774	Boastin' Red Socks	Waterloo local 1999.06.19	0	2