MathDB

7.3

Part of MathLinks Contest 5th

Problems(1)

0573 combo geo 5th edition Round 7 p3

Source:

5/6/2021
Given is a square of sides 37×373\sqrt7 \times 3\sqrt7. Find the minimal positive integer nn such that no matter how we put nn unit disks inside the given square, without overlapping, there exists a line that intersects 44 disks.
combinatorics5th edition