human
Maximize count of pairs whose bitwise XOR is even by replacing such pairs with their Bitwise XOR | Function to maximize the count of pairs with even XOR possible in an array by given operations.
Stores count of odd array elements.
Traverse the array.
If arr [ i ] is odd.
Stores the total number of even pairs.
Driver Code.
Input.
Function call to count the number of pairs whose XOR is even"
Solution in Python:

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Write me a code to maximize count of pairs whose bitwise XOR is even by replacing such pairs with their Bitwise XOR and the other steps required?
assistant
#Here is code to maximize count of pairs whose bitwise XOR is even by replacing such pairs with their Bitwise XOR and the other steps required.
 def countPairs ( arr , N ) :
	odd = 0
	for i in range ( N ) :
		if ( arr [ i ] & 1 ) :
			odd += 1
	ans = ( N - odd + odd // 2 - 1 ) + odd // 2
	return ans
if __name__ == ' _ _ main _ _ ' :
	arr = [ 4 , 6 , 1 , 3 ]
	N = len ( arr )
	print ( countPairs ( arr , N ) )