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Maximum Bitwise XOR of node values of an Acyclic Graph made up of N given vertices using M edges | Function to find the maximum Bitwise XOR of any subset of the array of size K.
Number of node must K + 1 for K edges.
Stores the maximum Bitwise XOR.
Generate all subsets of the array.
__builtin_popcount ( ) returns the number of sets bits in an integer.
Initialize current xor as 0.
If jth bit is set in i then include jth element in the current xor.
Update the maximum Bitwise XOR obtained so far.
Return the maximum XOR.
Driver Code"
Solution in Python:
 ... What is a code to maximum Bitwise XOR of node values of an Acyclic Graph made up of N given vertices using M edges and the other steps required?
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#Here is code to maximum Bitwise XOR of node values of an Acyclic Graph made up of N given vertices using M edges and the other steps required.
 def maximumXOR ( arr , n , K ) :
	K += 1
	maxXor = - 10 ** 9
	for i in range ( 1 << n ) :
		if ( bin ( i ) . count ( '1' ) == K ) :
			cur_xor = 0
			for j in range ( n ) :
				if ( i & ( 1 << j ) ) :
					cur_xor = cur_xor ^ arr [ j ]
			maxXor = max ( maxXor , cur_xor )
	return maxXor
if __name__ == ' _ _ main _ _ ' :
	arr = [ 1 , 2 , 3 , 4 ]
	N = len ( arr )
	M = 2
	print ( maximumXOR ( arr , N , M ) )