2018年5月1日
POJ 3687 Labeling Balls（拓扑排序）题解
摘要： DescriptionWindy has N balls of distinct weights from 1 unit to N units. Now he tries to label them with 1 to N in such a way that:No ... 阅读全文
posted @ 2018-05-01 15:55 KirinSB 阅读(166) 评论(0) 推荐(0)
POJ 1270 Following Orders（拓扑排序）题解
摘要： DescriptionOrder is an important concept in mathematics and in computer science. For example, Zorn's Lemma states: ``a partially order... 阅读全文
posted @ 2018-05-01 14:10 KirinSB 阅读(323) 评论(0) 推荐(0)