From_ITK18_With_Love's blog

By From_ITK18_With_Love, history, 3 months ago, In English

Today, I get a problem.

Sum of greatest odd divisor of numbers in range $$$[a, b]$$$ with $$$a, b <= 10^9$$$

I found solution here :

But I think the solution is not clear for the even number case.

Can find a better solution or more detailed explanation ?

Sorry, my english was bad.

Thanks you.

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