update license to BSD 3 clause

Merge pull request #81 from Vipul97/patch-1

Update Example

Update Example

Remove Example

Merge pull request #80 from alexhagiopol/feature-ch16

Merge branch 'master' into feature-ch16

update readme problem count

Merge pull request #79 from alexhagiopol/feature-ch16

implement 16.19 C++

implemente dunit tests and skeleton for 16.19 C++

Merge pull request #78 from alexhagiopol/feature-ch16

fix error in problem count

Implement 16.7 and 16.17

implement 10.7 C++