human
Write me a code to maximum sum of pairs that are at least K distance apart in an array and the other steps required given the following:
Maximum sum of pairs that are at least K distance apart in an array | Function to find the largest sum pair that are K distant apart.
Stores the prefix maximum array.
Base Case.
Traverse the array and update the maximum value upto index i.
Stores the maximum sum of pairs.
Iterate over the range [ K , N ].
Find the maximum value of the sum of valid pairs.
Return the resultant sum.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to maximum sum of pairs that are at least K distance apart in an array and the other steps required.
 def getMaxPairSum ( arr , N , K ) :
	preMax = [ 0 ] * N
	preMax [ 0 ] = arr [ 0 ]
	for i in range ( 1 , N ) :
		preMax [ i ] = max ( preMax [ i - 1 ] , arr [ i ] )
	res = - 10 ** 8
	for i in range ( K , N ) :
		res = max ( res , arr [ i ] + preMax [ i - K ] )
	return res
if __name__ == ' _ _ main _ _ ' :
	arr = [ 1 , 2 , 4 , 8 , 6 , 3 ]
	K = 3
	N = len ( arr )
	print ( getMaxPairSum ( arr , N , K ) )