Cant we find the elements of the maximum sum array using Kadane’s algo?
Elements of max sum array in Kadane's ALgo
To print the maximum subarray, along with maintaining the maximum subarray sum, also maintain the indices whenever you get maximum subarray sum so far.
The function would be something like this:
int maxSubArraySum(int a[], int size)
{
int max_so_far = INT_MIN, max_ending_here = 0,
start =0, end = 0, s=0;
for (int i=0; i< size; i++ )
{
max_ending_here += a[i];
if (max_so_far < max_ending_here)
{
max_so_far = max_ending_here;
start = s;
end = i;
}
if (max_ending_here < 0)
{
max_ending_here = 0;
s = i + 1;
}
}
cout << "Maximum contiguous sum is "
<< max_so_far << endl;
cout << "Starting index "<< start
<< endl << "Ending index "<< end << endl;
}