PUMaC 2008 · 代数（A 组） · 第 1 题
PUMaC 2008 — Algebra (Division A) — Problem 1
题目详情
- (2 points) Given the sequence 1, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, . . . , find n such that the sum of the first n terms is 2008 or 2009.
解析
暂无解答链接。
Original Explanation
No solutions link available.