human
Give me a code to sum of squares of differences between all pairs of an array and the other steps required given the following:
Sum of squares of differences between all pairs of an array | Function to calculate sum of squares of differences of all possible pairs.
Stores the final sum.
Stores temporary values.
Traverse the array.
Final sum.
Prthe answer.
Driver Code.
Given array.
Size of the array.
Function call to find sum of square of differences of all possible pairs"
How can the above be solved in Python?
assistant
#Here is code to sum of squares of differences between all pairs of an array and the other steps required.
 def sumOfSquaredDifferences ( arr , N ) :
	ans = 0
	sumA , sumB = 0 , 0
	for i in range ( N ) :
		sumA += ( arr [ i ] * arr [ i ] )
		sumB += arr [ i ]
	sumA = N * sumA
	sumB = ( sumB * sumB )
	ans = sumA - sumB
	print ( ans )
if __name__ == ' _ _ main _ _ ' :
	arr = [ 2 , 8 , 4 ]
	N = len ( arr )
	sumOfSquaredDifferences ( arr , N )