2015年10月5日
[LintCode] Permuation Index
摘要： Given a permutation which contains no repeated number, find its index in all the permutations of these numbers, which are ordered in lexicographical o... 阅读全文
posted @ 2015-10-05 13:26 xchangcheng 阅读(183) 评论(0) 推荐(0) 编辑