Farheen khan

Add tip: Using Aspect Ratio instead of usual Margin and Padding

3

I think this repo must contain the aspect ratio hack...It can be use widely in hero section , responsive styling and grid based content.... Here is more info about the...

Added Ancestors in Binary Tree

4

- [] I have read [CONTRIBUTING.md](https://github.com/TheAlgorithms/Java/blob/master/CONTRIBUTING.md). - [] This pull request is all my own work -- I have not plagiarized it. - [] All filenames are in PascalCase. -...

its not running on higher version of dart