Additional test cases have been added.
I like this solution ! Simple and easy to read.
it took me quite a while to figure this one out.your coding thought keep stunning me.amazing idea!
Using forward&backward compare,don't see that before,awesome.
The Goldbach Conjecture
Back to basics 10 - Max Float
Energy of a photon
Get the elements of diagonal and antidiagonal for any m-by-n matrix
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