Maximum Circular Sum

what is wrapping, i check the editorial and i bit confuse with it’s explanation.
can you tell me what is wrapping here, and code.

@pradeep.mahato.cs.2015,
wrapping basically means that you need to go from the last index to the first index in order to find the max sum.

{-10, 2, -1, 5}, {-2, 4, -1, 4, -1} In these test cases you don’t need to go around or wrap around the array.

{10, -12, 11}, {12, -5, 4, -8, 11} In these cases you need to wrap around the array to produce the result.

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