human
Can you provide a code to number of Subarrays with positive product and the other steps required given the following:
Number of Subarrays with positive product | Function to return the count of subarrays with negative product.
Replace current element with 1 if it is positive else replace it with - 1 instead.
Take product with previous element to form the prefix product.
Count positive and negative elements in the prefix product array.
Return the required count of subarrays.
Function to return the count of subarrays with positive product.
Total subarrays possible.
Count to subarrays with negative product.
Return the count of subarrays with positive product.
Driver code"
Solution in Python:
assistant
#Here is code to number of Subarrays with positive product and the other steps required.
 def negProdSubArr ( arr , n ) :
	positive = 1
	negative = 0
	for i in range ( n ) :
		if ( arr [ i ] > 0 ) :
			arr [ i ] = 1
		else :
			arr [ i ] = - 1
		if ( i > 0 ) :
			arr [ i ] *= arr [ i - 1 ]
		if ( arr [ i ] == 1 ) :
			positive += 1
		else :
			negative += 1
	return ( positive * negative )
def posProdSubArr ( arr , n ) :
	total = ( n * ( n + 1 ) ) / 2 ;
	cntNeg = negProdSubArr ( arr , n ) ;
	return ( total - cntNeg ) ;
arr = [ 5 , - 4 , - 3 , 2 , - 5 ]
n = len ( arr )
print ( posProdSubArr ( arr , n ) )