Maximum subarray sum

#1

i didn’t understand the cumulative sum approach of the above question can you explain me more clearly

#2

hello @aasif2364

the idea is simple, cumulative[i] stores sum from index 0 to index i.

now if u want to find sum from index j to index i
then we need to find sum till index i and then we have to subtract sum till j-1 .
thats why
sum between j…i= cumulative [i]- cumulative [j-1]

#3

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