2012年11月23日
246E - Blood Cousins Return
摘要： E. Blood Cousins Returntime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputPolycarpus got hold of a family tree. The found tree describes the family relations ofnpeople, numbered from 1 ton. Every person in this tree has at most one direct ancestor. 阅读全文
posted @ 2012-11-23 23:26 YogyKwan 阅读(567) 评论(0) 推荐(0)