Describe your change:

Added Cherry Pickup Problem. I have added the Problem Statement and Example in the starting of the code as Comment. This questions is one of the most favorite question which is being asked in Interviews.

• Add an algorithm?

References

Checklist:

• I have read CONTRIBUTING.md.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Java files are placed inside an existing directory.
• All functions and variable names follow Java naming conventions.