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Find a partition point in array to maximize its xor sum | Function to calculate Prefix Xor array.
Calculating prefix xor.
Function to find partition point in array to maximize xor sum.
To store prefix xor.
Compute the prefix xor.
To store sum and index.
Calculate the maximum sum that can be obtained splitting the array at some index i.
PrefixXor [ i ] = Xor of all arr elements till i ' th ▁ index ▁ PrefixXor [ n - 1 ] ▁ ▁ ^ ▁ PrefixXor [ i ] ▁ = ▁ Xor ▁ of ▁ all ▁ elements ▁ ▁ from ▁ i + 1' th index to n - 1 'th index.
Return the index.
Driver code.
Function call"
Solution in Python:
assistant
#Here is code to find a partition point in array to maximize its xor sum and the other steps required.
 def ComputePrefixXor ( arr , PrefixXor , n ) :
	PrefixXor [ 0 ] = arr [ 0 ] ;
	for i in range ( 1 , n ) :
		PrefixXor [ i ] = PrefixXor [ i - 1 ] ^ arr [ i ] ;
def Xor_Sum ( arr , n ) :
	PrefixXor = [ 0 ] * n ;
	ComputePrefixXor ( arr , PrefixXor , n ) ;
	sum , index = 0 , 0 ;
	for i in range ( n ) :
		if ( PrefixXor [ i ] + ( PrefixXor [ n - 1 ] ^ PrefixXor [ i ] ) > sum ) :
			sum = PrefixXor [ i ] + ( PrefixXor [ n - 1 ] ^ PrefixXor [ i ] ) ;
			index = i ;
	return index + 1 ;
arr = [ 1 , 4 , 6 , 3 , 8 , 13 , 34 , 2 , 21 , 10 ] ;
n = len ( arr ) ;
print ( Xor_Sum ( arr , n ) ) ;