2019年5月31日
B - Sequence II (HDU 5147)
摘要： Long long ago, there is a sequence A with length n. All numbers in this sequence is no smaller than 1 and no bigger than n, and all numbers are differ 阅读全文
posted @ 2019-05-31 23:26 cherish__lin 阅读(139) 评论(0) 推荐(0)