Add easiest Ruby solution ever for problem 7 :see_no_evil:
Add easiest Ruby solution ever for problem 7 :see_no_evil:

mdsrosa/project_euler,mdsrosa/project_euler,mdsrosa/project_euler,mdsrosa/project_euler,mdsrosa/project_euler,mdsrosa/project_euler,mdsrosa/project_euler,mdsrosa/project_euler