InterviewBit Problems   Max Non Negative SubArray : Solved

Have a doubt in the fastest solution (1)
Python Solution with special cases handled (1)
Max Non Negative SubArray Easy Java soln (1)
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Very complicated solution it took me 1hr (1)
Can anyone suggest what is wrong with this? (1)
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Starting Index part of the problem (1)
Java O(n) Easy solution (1)
Simple C++ Soution O(N) (1)
This might be the simplest solution (1)
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Basic Python solution (1)
Using Kadane's Algorithm (1)
Runtime error only on submission (2)
Descriptive solution considering all the case [C++] (1)
Simple c++ solution for max non negative subarray (1)
My initial Python solution using max_sum and max_len (1)
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Optimal Java sol (1)