摘要: Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of al... 阅读全文
posted @ 2010-10-17 21:56 jeff_nie 阅读(141) 评论(0) 推荐(0) 编辑
摘要: If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000. 题目要求:求1000以内... 阅读全文
posted @ 2010-10-17 21:55 jeff_nie 阅读(132) 评论(0) 推荐(0) 编辑
摘要: 定义:任何一个整数的立方都可以写成一串相邻奇数之和(因为如果不是一串相邻的奇数,这个组合可能会有多个),这就是著名的尼科梅彻斯定理。如:1(3) = 12(3) = 3 + 53(3) = 7 + 9 + 114(3) = 13 + 15 + 17 + 19… …要求:输入任意整数n,求n(3)是哪些相邻奇数和 算法分析:从上面的式子,我们可以得出以下推论: 1. 整... 阅读全文
posted @ 2010-10-17 21:52 jeff_nie 阅读(930) 评论(0) 推荐(0) 编辑