How to solve TOPCHEF?

Can anyone please explain any solution to TOPCHEF problem?

https://www.codechef.com/CHIL2020/problems/TOPCHEF

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editorial will be released soon :slight_smile:

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Thanks for the reply. :slight_smile:

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I have a beautiful idea to solve the problem.Just find the total number of L and total number of R and print l*(l-1)/2+r*(r-1)/2 this is the answer…I came to this proof after several observation

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