added leaf nodes problem

[Sloth-Panda]

Related Issuse

• Info about Issue or bug

Closes: #215

Describe the changes you've made

A clear and concise description of what you have done to successfully close your assigned issue. Any new files? or anything you feel to let us know!

This python program will count the number o leaf nodes in a binary tree

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [x] Code style update (formatting, local variables)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. On pc through Ide

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

A clear and concise description of it. NA

Checklist:

• [x] My code follows the style guidelines of this project.
• [x] I have performed a self-review of my own code.
• [x] I have commented my code, particularly in hard-to-understand areas.
• [x] I have made corresponding changes to the documentation.
• [x] My changes generate no new warnings.
• [x] I have added tests that prove my fix is effective or that my feature works.
• [x] New and existing unit tests pass locally with my changes.

Screenshots

[Sloth-Panda]

@ankitapuri

[ankitapuri]

@ankitapuri

Don't make the folder name others , change it to trees