Contribution #1478

Problem: en/6.5.2

Added Luis's English solution of 6.5.2

Editor: Luis Daniel Fernández Quintana ( @Luisito )

Time: June 21, 2024 at 02:57 AM

GitHub commit: 41c1d9ab85ead724d075f2d3b9c3e6fbf71edcb1

+137 -10 lines changed