human
Can you provide a code to maximum sum of Bitwise XOR of elements with their respective positions in a permutation of size N and the other steps required given the following:
Maximum sum of Bitwise XOR of elements with their respective positions in a permutation of size N | Function to generate all the possible permutation and get the max score.
If arr [ ] length is equal to N process the permutation.
Generating the permutations.
If the current element is chosen.
Mark the current element as true.
Recursively call for next possible permutation.
Backtracking.
Return the ans.
Function to calculate the score.
Stores the possible score for the current permutation.
Traverse the permutation array.
Return the final score.
Driver Code.
Stores the permutation.
To display the result"
Solution in Python:
assistant
#Here is code to maximum sum of Bitwise XOR of elements with their respective positions in a permutation of size N and the other steps required.
 def getMax ( arr , ans , chosen , N ) :
	if len ( arr ) == N :
		ans = max ( ans , calcScr ( arr ) )
		return ans
	for i in range ( N ) :
		if chosen [ i ] :
			continue
		chosen [ i ] = True
		arr . append ( i )
		ans = getMax ( arr , ans , chosen , N )
		chosen [ i ] = False
		arr . pop ( )
	return ans
def calcScr ( arr ) :
	ans = 0
	for i in range ( len ( arr ) ) :
		ans += ( i ^ arr [ i ] )
	return ans
N = 2
arr = [ ]
ans = - 1
chosen = [ False for i in range ( N ) ]
ans = getMax ( arr , ans , chosen , N )
print ( ans )