Maximum Circular Sum

I am not able to understand the logic behind creating the loop in this question. Please elaborate the logic or share some code for reference.

computes the total sum and applies Kadane’s algorithm to handle non-circular and circular subarray sums.

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Can you please check and tell the necessary corrections required in my code :

Can you please check and tell the necessary corrections required in my code as it is giving the correct output. Code : https://ide.codingblocks.com/s/698099

Adjust loop range to start from index 1 for curr_max and curr_min calculations to avoid incorrect results.

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Can you pls tell why did we take the starting index as 1?

The starting index is 1 to avoid duplicating the maximum subarray calculation from index 0.

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