human
What is a code to largest sum subarray with at and the other steps required given the following:
Largest sum subarray with at | Returns maximum sum of a subarray with at - least k elements ..
maxSum [ i ] is going to store maximum sum till index i such that a [ i ] is part of the sum ..
We use Kadane 's algorithm to fill maxSum[]  Below code is taken from method3 of  https:www.geeksforgeeks.org/largest-sum-contiguous-subarray/.
Sum of first k elements.
Use the concept of sliding window.
Compute sum of k elements ending with a [ i ] ..
Update result if required.
Include maximum sum till [ i - k ] also if it increases overall max ..
Driver code"
How can the above be solved in Python?
assistant
#Here is code to largest sum subarray with at and the other steps required.
 def maxSumWithK ( a , n , k ) :
	maxSum = [ 0 for i in range ( n ) ]
	maxSum [ 0 ] = a [ 0 ]
	curr_max = a [ 0 ]
	for i in range ( 1 , n ) :
		curr_max = max ( a [ i ] , curr_max + a [ i ] )
		maxSum [ i ] = curr_max
	sum = 0
	for i in range ( k ) :
		sum += a [ i ]
	result = sum
	for i in range ( k , n ) :
		sum = sum + a [ i ] - a [ i - k ]
		result = max ( result , sum )
		result = max ( result , sum + maxSum [ i - k ] )
	return result
a = [ 1 , 2 , 3 , - 10 , - 3 ]
k = 4
n = len ( a )
print ( maxSumWithK ( a , n , k ) )