Problem 6: Sum square difference
摘要:
The sum of the squares of the first ten natural numbers is, 12 + 22 + ... + 102 = 385 The square of the sum of the first ten natural numbers is, (1 + 阅读全文
posted @ 2017-12-04 11:28 中年小Q 阅读(154) 评论(0) 推荐(0) 编辑