C Plus Plus Language slide 24 to 40
https://www.youtube.com/watch?v=L-_KYLJGRwQ&list=PLPv31ankkykDMKMVd5ndFr5PkO70KbadS&index=4
https://www.youtube.com/watch?v=L-_KYLJGRwQ&list=PLPv31ankkykDMKMVd5ndFr5PkO70KbadS&index=4
https://www.youtube.com/watch?v=kHhVBCOdcgM&list=PLPv31ankkykDMKMVd5ndFr5PkO70KbadS&index=3