60. Permutation Sequence (String; Math)
摘要：
The set [1,2,3,…,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order,We get the following sequence 阅读全文
posted @ 2015-10-12 06:29 joannae 阅读(193) 评论(0) 推荐(0) 编辑
