human
Maximize difference between sum of even and odd | Function to find the maximum possible difference between sum of even and odd indices.
Convert arr [ ] o 1 - based indexing.
Reverse the array.
Convert arr [ ] o 1 based index.
Reverse the array.
Stores maximum difference between sum of even and odd indexed elements.
Traverse the array.
If arr [ i ] is local maxima.
Update maxDiff.
If arr [ i ] is local minima.
Update maxDiff.
Driver Code.
Size of array.
Function Call"
How can the above be solved in Python?
assistant
#Here is code to maximize difference between sum of even and odd and the other steps required.
 def maxPossibleDiff ( arr , N ) :
	arr . append ( - 1 )
	arr = arr [ : : - 1 ]
	arr . append ( - 1 )
	arr = arr [ : : - 1 ]
	maxDiff = 0
	for i in range ( 1 , N + 1 ) :
		if ( arr [ i ] > arr [ i - 1 ] and arr [ i ] > arr [ i + 1 ] ) :
			maxDiff += arr [ i ]
		if ( arr [ i ] < arr [ i - 1 ] and arr [ i ] < arr [ i + 1 ] ) :
			maxDiff -= arr [ i ]
	print ( maxDiff )
if __name__ == ' _ _ main _ _ ' :
	arr = [ 3 , 2 , 1 , 4 , 5 , 2 , 1 , 7 , 8 , 9 ]
	N = len ( arr )
	maxPossibleDiff ( arr , N )