Need solution or editorial of Bye, inversions!.

[shanaulhaque]

Please, can anyone provide editorial or solution of problem Bye, inversions!

[franky]

[Editorial BY Anudeep ][1]https://docs.google.com/document/d/1BAbUtr6nwo2CEXN1aXAsO58dlpl5nTRRFfomb6eIMd0/edit