We can always find a non-perfect square

In this video, we present a solution to IMO 1986/1. 00:00 Intro 00:11 Problem Statement 00:42 Solution Check out our website https://www.calimath.org to find past problems, solutions and other cool stuff. Solution PDF: https://calimath.org/pdf/IMO1986-1.pdf branch: number theory difficulty: 7 Our website: https://www.calimath.org Contact us: calimath.business@gmail.com