poj 2524
摘要:
There are so many different religions in the world today that it is difficult to keep track of them all. You are interested in finding out how many different religions students in your university believe in.You know that there are n students in your university (0< n<= 50000). It is infeasible 阅读全文
posted @ 2011-10-19 11:23 巨富一生 阅读(190) 评论(0) 推荐(0) 编辑