2017年9月1日
I - Balancing Act POJ - 1655
摘要： Consider a tree T with N (1 <= N <= 20,000) nodes numbered 1...N. Deleting any node from the tree yields a forest: a collection of one or more trees. 阅读全文
posted @ 2017-09-01 19:43 joeylee97 阅读(130) 评论(0) 推荐(0) 编辑