2015年6月3日
B - Alexandra and Prime Numbers
摘要： Alexandra has a little brother. He is new to programming. One day he is solving the following problem: Given an positive integer N, judge whether N is... 阅读全文
posted @ 2015-06-03 08:40 大领主 阅读(154) 评论(0) 推荐(0) 编辑