What is Google Foobar Challenge?

Google Foobar is Google’s secret hiring challenge. Google uses it to hire some of the best developers around the globe which they think can be a good match for their organization. Many developers in Google have been hired through this hiring challenge.
There were 5 levels and 9 problems in this challenge.
Level 1 has 1 problem, level 2 has 2 problems, level 3 has 3 problems, level 4 has 2 problems and level 5 has 1 problem.

Notes

• Took part in Foobar Challenge March, 2019.
• You should submit your code for review in Level 3, So be careful in Level 3.
• It took some time get feedback after completing Foobar Challenge, So please keep patience.
• Collect and include problems from different Foobar Challenge sources to enrich this repository.
• If you want contribute then please fork and make a Pull Request.
• Please follow the existing doc style for Pull Request.
• Provide only Pythonic style Input & Output formats.
• Google Foobar accepts only Java or Python

Contact Details

• Skype: https://join.skype.com/invite/oigG2GQyCpRP
• LinkedIn: https://www.linkedin.com/in/tssovi/

Upon completion of the third level, Foo Bar asked if I wanted to send information to a Google recruiter. Here are the questions:

• [Y]es [N]o [A]sk me later: Y

• [#2] First name:
• [#3] Last name:
• [#4] Email:
• [#5] Country:
• [#6] Phone number:
• [#7] Other helpful links (optional):

• [Y]es or [N]o: Y

1. Currently in high school
2. Currently pursuing a degree
3. Will complete degree within 1 year
4. Professional
5. Other

• Enter 1-5:

• [Y]es or [N]o: Y