human
Maximum possible Bitwise OR of the two numbers from the range [ L , R ] | Function to return the maximum bitwise OR of any pair from the given range.
Converting L to its binary representation.
Converting R to its binary representation.
In order to make the number of bits of L and R same.
Push 0 to the MSB.
When ith bit of R is 1 and ith bit of L is 0.
From MSB side set all bits of L to be 1.
From ( i + 1 ) th bit , all bits of L changed to be 1.
Driver code"
Solution in Python:

Write me a code to maximum possible Bitwise OR of the two numbers from the range [ L , R ] and the other steps required?
assistant
#Here is code to maximum possible Bitwise OR of the two numbers from the range [ L , R ] and the other steps required.
 def max_bitwise_or ( L , R ) :
	v1 = [ ]
	v2 = [ ]
	v3 = [ ]
	z = 0
	i = 0
	ans = 0
	cnt = 1
	while ( L > 0 ) :
		v1 . append ( L % 2 )
		L = L // 2
	while ( R > 0 ) :
		v2 . append ( R % 2 )
		R = R // 2
	while ( len ( v1 ) != len ( v2 ) ) :
		v1 . append ( 0 )
	for i in range ( len ( v2 ) - 1 , - 1 , - 1 ) :
		if ( v2 [ i ] == 1 and v1 [ i ] == 0 and z == 0 ) :
			z = 1
			continue
		if ( z == 1 ) :
			v1 [ i ] = 1
	for i in range ( len ( v2 ) ) :
		v3 . append ( v2 [ i ] v1 [ i ] )
	for i in range ( len ( v2 ) ) :
		if ( v3 [ i ] == 1 ) :
			ans += cnt
		cnt *= 2
	return ans
L = 10
R = 20
print ( max_bitwise_or ( L , R ) )