I did not understand the algorithm

[astha119btcse21_7380491a239a3b9b (Astha Varshney)]

I saw the solution to this question but I didn’t understand it. Can you please explain?

[talhashamim001 (Talha Shamim)]

hi @astha119btcse21_7380491a239a3b9b refer this article https://www.geeksforgeeks.org/maximum-contiguous-circular-sum/ and do a dry run