human
What is a code to maximize frequency sum of K chosen characters from given string and the other steps required given the following:
Maximize frequency sum of K chosen characters from given string | Function to find the maximum sum of frequencies of the exactly K chosen characters from the string S.
Stores the resultant maximum sum.
Stores the frequency of array elements.
Find the frequency of character.
Sort the frequency array in the descending order.
Iterate to choose K elements greedily.
If the freq [ i ] cards are chosen.
K cards have been picked.
Return the resultant sum.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to maximize frequency sum of K chosen characters from given string and the other steps required.
 def maximumSum ( S , N , K ) :
	sum = 0
	freq = [ 0 ] * 256
	for i in range ( N ) :
		freq [ ord ( S [ i ] ) ] += 1
	freq = sorted ( freq ) [ : : - 1 ]
	for i in range ( 256 ) :
		if ( K > freq [ i ] ) :
			sum += freq [ i ] * freq [ i ]
			K -= freq [ i ]
		else :
			sum += freq [ i ] * K
			break
	return sum
if __name__ == ' _ _ main _ _ ' :
	S = " GEEKSFORGEEKS "
	K = 10
	N = len ( S )
	print ( maximumSum ( S , N , K ) )