2016年11月16日
hdu 4407 SUM
摘要： Problem Description XXX is puzzled with the question below: 1, 2, 3, ..., n (1<=n<=400000) are placed in a line. There are m (1<=m<=1000) operations o 阅读全文
posted @ 2016-11-16 19:26 邻家那小孩儿 阅读(150) 评论(0) 推荐(0) 编辑