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Maximum Prefix Sum possible by merging two given arrays | Python3 implementation of the above approach.
Stores the maximum prefix sum of the array A [ ].
Traverse the array A [ ].
Stores the maximum prefix sum of the array B [ ].
Traverse the array B [ ].
Driver code"
How can the above be solved in Python?
assistant
#Here is code to maximum Prefix Sum possible by merging two given arrays and the other steps required.
 def maxPresum ( a , b ) :
	X = max ( a [ 0 ] , 0 )
	for i in range ( 1 , len ( a ) ) :
		a [ i ] += a [ i - 1 ]
		X = max ( X , a [ i ] )
	Y = max ( b [ 0 ] , 0 )
	for i in range ( 1 , len ( b ) ) :
		b [ i ] += b [ i - 1 ]
		Y = max ( Y , b [ i ] )
	return X + Y
A = [ 2 , - 1 , 4 , - 5 ]
B = [ 4 , - 3 , 12 , 4 , - 3 ]
print ( maxPresum ( A , B ) )