# Difference between revisions of "2012 USAMO Problems/Problem 1"

## Problem

Find all integers $n \ge 3$ such that among any $n$ positive real numbers $a_1$, $a_2$, $\dots$, $a_n$ with $$\max(a_1, a_2, \dots, a_n) \le n \cdot \min(a_1, a_2, \dots, a_n),$$ there exist three that are the side lengths of an acute triangle.