# References

[www.wikipedia.com](http://www.wikipedia.com)

[www.geeksforgeeks.com](http://www.geeksforgeeks.com)

[www.programiz.com](http://www.programiz.com)

[www.usaco.guide](http://www.usaco.guide)

[www.tutorialspoint.com](http://www.tutorialspoint.com)

[www.techdelight.com](http://www.techdelight.com)

![](https://99772386-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Ml1CeryuEyvAp_NEaaR%2Fuploads%2FCtfA09mbiUudMq4ASsGs%2F6865bf7fc2946f2b44fa001724210cce.gif?alt=media\&token=ac02ae50-8e25-43b8-a335-9d80b7c20568)