human
Connect a graph by M edges such that the graph does not contain any cycle and Bitwise AND of connected vertices is maximum | Function to find the maximum Bitwise AND of connected components possible by connecting a graph using M edges.
Stores total number of ways to connect the graph.
Stores the maximum Bitwise AND.
Iterate over the range [ 0 , 2 ^ n ].
Store the Bitwise AND of the connected vertices.
Store the count of the connected vertices.
Check for all the bits.
If i - th bit is set.
If the first vertex is added.
Set andans equal to arr [ i ].
Calculate Bitwise AND of arr [ i ] with andans.
Increase the count of connected vertices.
If number of connected vertices is ( m + 1 ) , no cycle is formed.
Find the maximum Bitwise AND value possible.
Return the maximum Bitwise AND possible.
Driver Code"
How can the above be solved in Python?
 ... Write me a code to connect a graph by M edges such that the graph does not contain any cycle and Bitwise AND of connected vertices is maximum and the other steps required?
assistant
#Here is code to connect a graph by M edges such that the graph does not contain any cycle and Bitwise AND of connected vertices is maximum and the other steps required.
 def maximumAND ( arr , n , m ) :
	tot = 1 << n
	mx = 0
	for bm in range ( tot ) :
		andans = 0
		count = 0
		for i in range ( n ) :
			if ( ( bm >> i ) & 1 ) :
				if ( count == 0 ) :
					andans = arr [ i ]
				else :
					andans = andans & arr [ i ]
				count += 1
		if ( count == ( m + 1 ) ) :
			mx = max ( mx , andans )
	return mx
if __name__ == ' _ _ main _ _ ' :
	arr = [ 1 , 2 , 3 , 4 ]
	N = len ( arr )
	M = 2
	print ( maximumAND ( arr , N , M ) )