2015年11月25日
Lintcode - Permutation 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 @ 2015-11-25 09:19 fifi努刷题 阅读(167) 评论(0) 推荐(0)