fair grid points in 2010 x 1340 rectangle 2010-11 Dürer Round1 C4
Source:
December 2, 2022
geometryareasDurer
Problem Statement
Given a grid rectangle of size . A grid point is called fair if the axis-parallel lines passing through it from the upper left and lower right corners of the large rectangle cut out a rectangle of equal area (such a point is shown in the figure). How many fair grid points lie inside the rectangle?
https://cdn.artofproblemsolving.com/attachments/1/b/21d4fb47c94b774994ac1c3aae7690bb98c7ae.png