human
Minimum insertions to make XOR of an Array equal to half of its sum | Function to make XOR of the array equal to half of its sum.
Calculate the sum and Xor of all the elements.
If the required condition satisfies already , return the original array.
If Xor is already zero , Insert sum.
Otherwise , insert xr and insert sum + xr.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to minimum insertions to make XOR of an Array equal to half of its sum and the other steps required.
 def make_xor_half ( arr ) :
	sum = 0 ; xr = 0 ;
	for a in arr :
		sum += a ;
		xr ^= a ;
	if ( 2 * xr == sum ) :
		return - 1 ;
	if ( xr == 0 ) :
		arr . append ( sum ) ;
		return 1 ;
	arr . append ( xr ) ;
	arr . append ( sum + xr ) ;
	return 2 ;
if __name__ == " _ _ main _ _ " :
	N = 7 ;
	nums = [ 3 , 4 , 7 , 1 , 2 , 5 , 6 ] ;
	count = make_xor_half ( nums ) ;
	if ( count == - 1 ) :
		print ( " - 1" ) ;
	elif ( count == 1 ) :
		print ( nums [ N ] ) ;
	else :
		print ( nums [ N ] , nums [ N + 1 ] ) ;