ZSTUOJ

题目编号	标题	来源/分类	解决	提交
1056	Mapping the Route	North Central Regionals 1997	2	4
1057	Is It A Tree?	1997-98 North Central Regionals	166	413
1058	Doing Windows	1997-98 North Central Regionals	2	6
1059	Numerically Speaking	1997-98 North Central Regionals	64	99
1293	Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob Benjamin Go to the Regionals	East Central North America 2006	1	1
1507	The Programmer's Hex	Mid Central Regionals 1993	0	0