摘要：
题目 A number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 阅读全文
摘要：
题目 Give you a number on base ten,you should output it on base two.(0 < n < 1000) Input For each case there is a postive number n on base ten, en 阅读全文