计算第k个质因数只能为3,5,7的数
摘要：
英文描述：Design an algorithm to find the kth number such that the only prime factorsare 3, 5, and 7思路：质因数只能为3,5,7，设这个数为val，则val = (3^i)(5^j)(7^n) (i,j,n>=... 阅读全文
posted @ 2015-06-09 17:16 Wonder奇迹奇迹 阅读(343) 评论(0) 推荐(0) 编辑