human
Write me a code to maximum score possible after performing given operations on an Array and the other steps required given the following:
Maximum score possible after performing given operations on an Array | Function to calculate maximum score recursively.
Base case.
Sum of array in range ( l , r ).
If the operation is even - numbered the score is decremented.
Exploring all paths , by removing leftmost and rightmost element and selecting the maximum value.
Function to find the max score.
Prefix sum array.
Calculating prefix_sum.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to maximum score possible after performing given operations on an Array and the other steps required.
 def maxScore ( l , r , prefix_sum , num ) :
	if ( l > r ) :
		return 0 ;
	if ( ( l - 1 ) >= 0 ) :
		current_sum = ( prefix_sum [ r ] - prefix_sum [ l - 1 ] )
	else :
		current_sum = prefix_sum [ r ] - 0
	if ( num % 2 == 0 ) :
		current_sum *= - 1 ;
	return current_sum + max ( maxScore ( l + 1 , r , prefix_sum , num + 1 ) , maxScore ( l , r - 1 , prefix_sum , num + 1 ) ) ;
def findMaxScore ( a , n ) :
	prefix_sum = [ 0 ] * n
	prefix_sum [ 0 ] = a [ 0 ]
	for i in range ( 1 , n ) :
		prefix_sum [ i ] = prefix_sum [ i - 1 ] + a [ i ] ;
	return maxScore ( 0 , n - 1 , prefix_sum , 1 ) ;
n = 6 ;
A = [ 1 , 2 , 3 , 4 , 2 , 6 ]
ans = findMaxScore ( A , n )
print ( ans )