PUMaC 2008 · 数论（A 组） · 第 10 题

PUMaC 2008 — Number Theory (Division A) — Problem 10

(7 points)What is the smallest number n such that you can choose n distinct odd integers 1 1 1 a , a , . . . a , none of them 1, with + + . . . + = 1? 1 2 n a a a 1 2 n 1

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